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Fax with T38


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Hi!

 

We have managed to set up T38 on both our, our gateway to the outside world and our ATA. If the ATA registers on the Gateway, T38 works fine.

 

However, if i use the ATA as a PBXnSIP extension, and the gateway sends a re-invite, i receive the sip message "NOT SUPPORTED" from the PBX.

 

Now, is the PBX T38 compatible or not???? And if yes, why does it react this way?

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Here u go...

 

Both negotiate T38. But after that i can only see "malformed" packets in ethereal. The fax is 192.168.16.124, the Gateway 192.168.16.12, the pbx 192.168.16.110

 

 

[7] 2007/06/01 18:20:16: SIP Rx udp:192.168.16.124:5060:

INVITE sip:0664771607997@192.168.16.110 SIP/2.0

Via: SIP/2.0/UDP 192.168.16.124:5060;branch=z9hG4bK2113019710;rport

Route: <sip:192.168.16.110:5060;lr>

From: "Fax" <sip:15@192.168.16.110>;tag=1026814437

To: <sip:0664771607997@192.168.16.110>

Call-ID: 167922533-5060-7@192.168.16.124

CSeq: 60 INVITE

Contact: <sip:15@192.168.16.124:5060>

Max-Forwards: 70

Supported: replaces, path

User-Agent: Grandstream HT-502 1.0.0.39

Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE

Content-Type: application/sdp

Content-Length: 363

 

v=0

o=15 8000 8000 IN IP4 192.168.16.124

s=SIP Call

c=IN IP4 192.168.16.124

t=0 0

m=audio 5004 RTP/AVP 0 8 4 18 2 97 103 102

a=sendrecv

a=rtpmap:0 PCMU/8000

a=ptime:20

a=rtpmap:8 PCMA/8000

a=rtpmap:4 G723/8000

a=rtpmap:18 G729/8000

a=rtpmap:2 G726-32/8000

a=rtpmap:97 iLBC/8000

a=fmtp:97 mode=20

a=rtpmap:103 G726-40/8000

a=rtpmap:102 G729E/8000

 

[0] 2007/06/01 18:20:16: UDP: Illegal port number

[7] 2007/06/01 18:20:16: UDP: Opening socket on port 49966

[7] 2007/06/01 18:20:16: UDP: Opening socket on port 49967

[5] 2007/06/01 18:20:16: Identify trunk 5

[8] 2007/06/01 18:20:16: Resolve destination 43538: a udp 192.168.16.124 5060

[8] 2007/06/01 18:20:16: Resolve destination 43538: udp 192.168.16.124 5060

[8] 2007/06/01 18:20:16: Send Packet 100

[7] 2007/06/01 18:20:16: SIP Tx udp:192.168.16.124:5060:

SIP/2.0 100 Trying

Via: SIP/2.0/UDP 192.168.16.124:5060;branch=z9hG4bK2113019710;rport=5060

From: "Fax" <sip:15@192.168.16.110>;tag=1026814437

To: <sip:0664771607997@192.168.16.110>;tag=ae3503080a

Call-ID: 167922533-5060-7@192.168.16.124

CSeq: 60 INVITE

Content-Length: 0

 

 

 

[8] 2007/06/01 18:20:16: Resolve destination 43539: a udp 192.168.16.124 5060

[8] 2007/06/01 18:20:16: Resolve destination 43539: udp 192.168.16.124 5060

[8] 2007/06/01 18:20:16: Send Packet 401

[7] 2007/06/01 18:20:16: SIP Tx udp:192.168.16.124:5060:

SIP/2.0 401 Authentication Required

Via: SIP/2.0/UDP 192.168.16.124:5060;branch=z9hG4bK2113019710;rport=5060

From: "Fax" <sip:15@192.168.16.110>;tag=1026814437

To: <sip:0664771607997@192.168.16.110>;tag=ae3503080a

Call-ID: 167922533-5060-7@192.168.16.124

CSeq: 60 INVITE

User-Agent: FL-Connect IP-PBX/2.0.3.1715

WWW-Authenticate: Digest realm="192.168.16.110",nonce="69d3ec2d6c963ae7c3c5b49b6007f033",domain="sip:0664771607997@192.168.16.110",algorithm=MD5

Content-Length: 0

 

 

[7] 2007/06/01 18:20:16: SIP Rx udp:192.168.16.124:5060:

ACK sip:0664771607997@192.168.16.110 SIP/2.0

Via: SIP/2.0/UDP 192.168.16.124:5060;branch=z9hG4bK2113019710;rport

Route: <sip:192.168.16.110:5060;lr>

From: "Fax" <sip:15@192.168.16.110>;tag=1026814437

To: <sip:0664771607997@192.168.16.110>;tag=ae3503080a

Call-ID: 167922533-5060-7@192.168.16.124

CSeq: 60 ACK

Content-Length: 0

 

 

[7] 2007/06/01 18:20:16: SIP Rx udp:192.168.16.124:5060:

INVITE sip:0664771607997@192.168.16.110 SIP/2.0

Via: SIP/2.0/UDP 192.168.16.124:5060;branch=z9hG4bK421753744;rport

Route: <sip:192.168.16.110:5060;lr>

From: "Fax" <sip:15@192.168.16.110>;tag=1026814437

To: <sip:0664771607997@192.168.16.110>

Call-ID: 167922533-5060-7@192.168.16.124

CSeq: 61 INVITE

Contact: <sip:15@192.168.16.124:5060>

Authorization: Digest username="15", realm="192.168.16.110", nonce="69d3ec2d6c963ae7c3c5b49b6007f033", uri="sip:0664771607997@192.168.16.110", response="ab9e1b2b4254ece8e78e910ebde5fdcc", algorithm=MD5

Max-Forwards: 70

Supported: replaces, path

User-Agent: Grandstream HT-502 1.0.0.39

Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE

Content-Type: application/sdp

Content-Length: 363

 

v=0

o=15 8000 8000 IN IP4 192.168.16.124

s=SIP Call

c=IN IP4 192.168.16.124

t=0 0

m=audio 5004 RTP/AVP 0 8 4 18 2 97 103 102

a=sendrecv

a=rtpmap:0 PCMU/8000

a=ptime:20

a=rtpmap:8 PCMA/8000

a=rtpmap:4 G723/8000

a=rtpmap:18 G729/8000

a=rtpmap:2 G726-32/8000

a=rtpmap:97 iLBC/8000

a=fmtp:97 mode=20

a=rtpmap:103 G726-40/8000

a=rtpmap:102 G729E/8000

 

[8] 2007/06/01 18:20:16: Tagging request with existing tag

[8] 2007/06/01 18:20:16: Resolve destination 43541: a udp 192.168.16.124 5060

[8] 2007/06/01 18:20:16: Resolve destination 43541: udp 192.168.16.124 5060

[8] 2007/06/01 18:20:16: Send Packet 100

[7] 2007/06/01 18:20:16: SIP Tx udp:192.168.16.124:5060:

SIP/2.0 100 Trying

Via: SIP/2.0/UDP 192.168.16.124:5060;branch=z9hG4bK421753744;rport=5060

From: "Fax" <sip:15@192.168.16.110>;tag=1026814437

To: <sip:0664771607997@192.168.16.110>;tag=ae3503080a

Call-ID: 167922533-5060-7@192.168.16.124

CSeq: 61 INVITE

Content-Length: 0

 

[7] 2007/06/01 18:20:16: UDP: Opening socket on port 51042

[7] 2007/06/01 18:20:16: UDP: Opening socket on port 51043

[8] 2007/06/01 18:20:16: Resolve destination 43544: url sip:192.168.16.12

[8] 2007/06/01 18:20:16: Resolve destination 43544: udp 192.168.16.12 5060

[8] 2007/06/01 18:20:16: Send Packet INVITE

[7] 2007/06/01 18:20:16: SIP Tx udp:192.168.16.12:5060:

INVITE sip:0664771607997@192.168.16.12;user=phone SIP/2.0

Via: SIP/2.0/UDP 192.168.16.110:5060;branch=z9hG4bK-2b23244bd8acf79a6618c117976b228a;rport

From: "Fax " <sip:+43724235108815@192.168.16.12>;tag=23234

To: <sip:0664771607997@192.168.16.12;user=phone>

Call-ID: 841706e2@pbx

CSeq: 17112 INVITE

Max-Forwards: 70

Contact: <sip:sippbx@192.168.16.110:5060;transport=udp>

Supported: 100rel, replaces, norefersub

Allow-Events: refer

Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, PRACK, INFO, PUBLISH, NOTIFY, SUBSCRIBE, MESSAGE

Accept: application/sdp

User-Agent: FL-Connect IP-PBX/2.0.3.1715

Remote-Party-ID: "sippbx" <sip:sippbx@192.168.16.12>;party=calling;screen=yes

Content-Type: application/sdp

Content-Length: 296

 

v=0

o=- 11568 11568 IN IP4 192.168.16.110

s=-

c=IN IP4 192.168.16.110

t=0 0

m=audio 51042 RTP/AVP 0 8 18 2 3 101

a=rtpmap:0 pcmu/8000

a=rtpmap:8 pcma/8000

a=rtpmap:18 g729/8000

a=rtpmap:2 g726-32/8000

a=rtpmap:3 gsm/8000

a=rtpmap:101 telephone-event/8000

a=fmtp:101 0-11

a=sendrecv

 

[8] 2007/06/01 18:20:16: Resolve destination 43545: a udp 192.168.16.124 5060

[8] 2007/06/01 18:20:16: Resolve destination 43545: udp 192.168.16.124 5060

[8] 2007/06/01 18:20:16: Send Packet 183

[7] 2007/06/01 18:20:16: SIP Tx udp:192.168.16.124:5060:

SIP/2.0 183 Session Progress

Via: SIP/2.0/UDP 192.168.16.124:5060;branch=z9hG4bK421753744;rport=5060

From: "Fax" <sip:15@192.168.16.110>;tag=1026814437

To: <sip:0664771607997@192.168.16.110>;tag=ae3503080a

Call-ID: 167922533-5060-7@192.168.16.124

CSeq: 61 INVITE

Contact: <sip:15@192.168.16.110:5060>

Supported: 100rel, replaces, norefersub

Allow-Events: refer

Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, PRACK, INFO, PUBLISH, NOTIFY, SUBSCRIBE, MESSAGE

Accept: application/sdp

User-Agent: FL-Connect IP-PBX/2.0.3.1715

Content-Type: application/sdp

Content-Length: 152

 

v=0

o=- 29725 29725 IN IP4 192.168.16.110

s=-

c=IN IP4 192.168.16.110

t=0 0

m=audio 49966 RTP/AVP 0

a=rtpmap:0 pcmu/8000

a=ptime:20

a=sendrecv

 

[7] 2007/06/01 18:20:16: SIP Rx udp:192.168.16.12:5060:

SIP/2.0 100 Trying

Via: SIP/2.0/UDP 192.168.16.110:5060;branch=z9hG4bK-2b23244bd8acf79a6618c117976b228a;rport

From: "Fax " <sip:+43724235108815@192.168.16.12>;tag=23234

To: <sip:0664771607997@192.168.16.12;user=phone>

Call-ID: 841706e2@pbx

CSeq: 17112 INVITE

Allow: INVITE,ACK,CANCEL,BYE,UPDATE,REGISTER,PRACK,INFO,NOTIFY,REFER

User-Agent: TELES.VoIPBOX 13.0b 885

Content-Length: 0

 

 

 

7] 2007/06/01 18:20:17: SIP Tr udp:192.168.16.124:5060:

SIP/2.0 183 Session Progress

Via: SIP/2.0/UDP 192.168.16.124:5060;branch=z9hG4bK421753744;rport=5060

From: "Fax" <sip:15@192.168.16.110>;tag=1026814437

To: <sip:0664771607997@192.168.16.110>;tag=ae3503080a

Call-ID: 167922533-5060-7@192.168.16.124

CSeq: 61 INVITE

Contact: <sip:15@192.168.16.110:5060>

Supported: 100rel, replaces, norefersub

Allow-Events: refer

Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, PRACK, INFO, PUBLISH, NOTIFY, SUBSCRIBE, MESSAGE

Accept: application/sdp

User-Agent: FL-Connect IP-PBX/2.0.3.1715

Content-Type: application/sdp

Content-Length: 152

 

v=0

o=- 29725 29725 IN IP4 192.168.16.110

s=-

c=IN IP4 192.168.16.110

t=0 0

m=audio 49966 RTP/AVP 0

a=rtpmap:0 pcmu/8000

a=ptime:20

a=sendrecv

 

[8] 2007/06/01 18:20:18: Send Packet 183

[7] 2007/06/01 18:20:18: SIP Tr udp:192.168.16.124:5060:

SIP/2.0 183 Session Progress

Via: SIP/2.0/UDP 192.168.16.124:5060;branch=z9hG4bK421753744;rport=5060

From: "Fax" <sip:15@192.168.16.110>;tag=1026814437

To: <sip:0664771607997@192.168.16.110>;tag=ae3503080a

Call-ID: 167922533-5060-7@192.168.16.124

CSeq: 61 INVITE

Contact: <sip:15@192.168.16.110:5060>

Supported: 100rel, replaces, norefersub

Allow-Events: refer

Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, PRACK, INFO, PUBLISH, NOTIFY, SUBSCRIBE, MESSAGE

Accept: application/sdp

User-Agent: FL-Connect IP-PBX/2.0.3.1715

Content-Type: application/sdp

Content-Length: 152

 

v=0

o=- 29725 29725 IN IP4 192.168.16.110

s=-

c=IN IP4 192.168.16.110

t=0 0

m=audio 49966 RTP/AVP 0

a=rtpmap:0 pcmu/8000

a=ptime:20

a=sendrecv

 

[8] 2007/06/01 18:20:20: Send Packet 183

[7] 2007/06/01 18:20:20: SIP Tr udp:192.168.16.124:5060:

SIP/2.0 183 Session Progress

Via: SIP/2.0/UDP 192.168.16.124:5060;branch=z9hG4bK421753744;rport=5060

From: "Fax" <sip:15@192.168.16.110>;tag=1026814437

To: <sip:0664771607997@192.168.16.110>;tag=ae3503080a

Call-ID: 167922533-5060-7@192.168.16.124

CSeq: 61 INVITE

Contact: <sip:15@192.168.16.110:5060>

Supported: 100rel, replaces, norefersub

Allow-Events: refer

Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, PRACK, INFO, PUBLISH, NOTIFY, SUBSCRIBE, MESSAGE

Accept: application/sdp

User-Agent: FL-Connect IP-PBX/2.0.3.1715

Content-Type: application/sdp

Content-Length: 152

 

v=0

o=- 29725 29725 IN IP4 192.168.16.110

s=-

c=IN IP4 192.168.16.110

t=0 0

m=audio 49966 RTP/AVP 0

a=rtpmap:0 pcmu/8000

a=ptime:20

a=sendrecv

 

[7] 2007/06/01 18:20:22: SIP Rx udp:192.168.16.12:5060:

SIP/2.0 183 Session progress

Via: SIP/2.0/UDP 192.168.16.110:5060;branch=z9hG4bK-2b23244bd8acf79a6618c117976b228a;rport

From: "Fax " <sip:+43724235108815@192.168.16.12>;tag=23234

To: <sip:0664771607997@192.168.16.12;user=phone>;tag=637880302461171716578104820567

Call-ID: 841706e2@pbx

CSeq: 17112 INVITE

Allow: INVITE,ACK,CANCEL,BYE,UPDATE,REGISTER,PRACK,INFO,NOTIFY,REFER

Contact: <sip:0664771607997@192.168.16.12>

User-Agent: TELES.VoIPBOX 13.0b 885

Content-Type: application/sdp

Content-Length: 188

 

v=0

o=- 277 1 IN IP4 192.168.16.12

s=-

c=IN IP4 192.168.16.12

t=0 0

m=audio 29000 RTP/AVP 0 101

a=rtpmap:0 PCMU/8000

a=ptime:40

a=rtpmap:101 telephone-event/8000

a=fmtp:101 0-15

 

[8] 2007/06/01 18:20:22: Resolve destination 43547: url sip:35@192.168.16.123:2054;line=4ym9kfvn

[8] 2007/06/01 18:20:22: Resolve destination 43547: udp 192.168.16.123 2054

[8] 2007/06/01 18:20:22: Send Packet NOTIFY

[7] 2007/06/01 18:20:22: SIP Tx udp:192.168.16.123:2054:

NOTIFY sip:35@192.168.16.123:2054;line=4ym9kfvn SIP/2.0

Via: SIP/2.0/UDP 192.168.16.110:5060;branch=z9hG4bK-c5aa0cd3873a1e0a271234f3bed12af3;rport

From: <sip:15@localhost;user=phone>;tag=003530fce3

To: <sip:35@localhost>;tag=qdifvavd0l

Call-ID: 3c26700e3b25-np70hd4mtm3d

CSeq: 1372 NOTIFY

Max-Forwards: 70

Contact: <sip:192.168.16.110:5060;transport=udp>

Event: dialog

Subscription-State: active;expires=66

Content-Type: application/dialog-info+xml

Content-Length: 455

 

[8] 2007/06/01 18:20:24: Send Packet 183

[7] 2007/06/01 18:20:24: SIP Tr udp:192.168.16.124:5060:

SIP/2.0 183 Session Progress

Via: SIP/2.0/UDP 192.168.16.124:5060;branch=z9hG4bK421753744;rport=5060

From: "Fax" <sip:15@192.168.16.110>;tag=1026814437

To: <sip:0664771607997@192.168.16.110>;tag=ae3503080a

Call-ID: 167922533-5060-7@192.168.16.124

CSeq: 61 INVITE

Contact: <sip:15@192.168.16.110:5060>

Supported: 100rel, replaces, norefersub

Allow-Events: refer

Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, PRACK, INFO, PUBLISH, NOTIFY, SUBSCRIBE, MESSAGE

Accept: application/sdp

User-Agent: FL-Connect IP-PBX/2.0.3.1715

Content-Type: application/sdp

Content-Length: 152

 

v=0

o=- 29725 29725 IN IP4 192.168.16.110

s=-

c=IN IP4 192.168.16.110

t=0 0

m=audio 49966 RTP/AVP 0

a=rtpmap:0 pcmu/8000

a=ptime:20

a=sendrecv

 

[7] 2007/06/01 18:20:24: SIP Rx udp:192.168.16.12:5060:

SIP/2.0 180 Ringing

Via: SIP/2.0/UDP 192.168.16.110:5060;branch=z9hG4bK-2b23244bd8acf79a6618c117976b228a;rport

From: "Fax " <sip:+43724235108815@192.168.16.12>;tag=23234

To: <sip:0664771607997@192.168.16.12;user=phone>;tag=637880302461171716578104820567

Call-ID: 841706e2@pbx

CSeq: 17112 INVITE

Allow: INVITE,ACK,CANCEL,BYE,UPDATE,REGISTER,PRACK,INFO,NOTIFY,REFER

Contact: <sip:0664771607997@192.168.16.12>

User-Agent: TELES.VoIPBOX 13.0b 885

Content-Type: application/sdp

Content-Length: 188

 

v=0

o=- 277 1 IN IP4 192.168.16.12

s=-

c=IN IP4 192.168.16.12

t=0 0

m=audio 29000 RTP/AVP 0 101

a=rtpmap:0 PCMU/8000

a=ptime:40

a=rtpmap:101 telephone-event/8000

a=fmtp:101 0-15

 

[7] 2007/06/01 18:20:24: SIP Rx udp:192.168.16.12:5060:

SIP/2.0 200 OK

Via: SIP/2.0/UDP 192.168.16.110:5060;branch=z9hG4bK-2b23244bd8acf79a6618c117976b228a;rport

From: "Fax " <sip:+43724235108815@192.168.16.12>;tag=23234

To: <sip:0664771607997@192.168.16.12;user=phone>;tag=637880302461171716578104820567

Call-ID: 841706e2@pbx

CSeq: 17112 INVITE

Allow: INVITE,ACK,CANCEL,BYE,UPDATE,REGISTER,PRACK,INFO,NOTIFY,REFER

Contact: <sip:0664771607997@192.168.16.12>

User-Agent: TELES.VoIPBOX 13.0b 885

Content-Type: application/sdp

Content-Length: 188

 

v=0

o=- 277 1 IN IP4 192.168.16.12

s=-

c=IN IP4 192.168.16.12

t=0 0

m=audio 29000 RTP/AVP 0 101

a=rtpmap:0 PCMU/8000

a=ptime:40

a=rtpmap:101 telephone-event/8000

a=fmtp:101 0-15

 

[8] 2007/06/01 18:20:24: Resolve destination 43549: url sip:0664771607997@192.168.16.12

[8] 2007/06/01 18:20:24: Resolve destination 43549: udp 192.168.16.12 5060

[8] 2007/06/01 18:20:24: Send Packet ACK

[7] 2007/06/01 18:20:24: SIP Tx udp:192.168.16.12:5060:

ACK sip:0664771607997@192.168.16.12 SIP/2.0

Via: SIP/2.0/UDP 192.168.16.110:5060;branch=z9hG4bK-39707571dca058a987d135230482d4e8;rport

From: "Fax " <sip:+43724235108815@192.168.16.12>;tag=23234

To: <sip:0664771607997@192.168.16.12;user=phone>;tag=637880302461171716578104820567

Call-ID: 841706e2@pbx

CSeq: 17112 ACK

Max-Forwards: 70

Contact: <sip:sippbx@192.168.16.110:5060;transport=udp>

Remote-Party-ID: "sippbx" <sip:sippbx@192.168.16.12>;party=calling;screen=yes

Content-Length: 0

 

 

[8] 2007/06/01 18:20:24: Resolve destination 43550: a udp 192.168.16.124 5060

[8] 2007/06/01 18:20:24: Resolve destination 43550: udp 192.168.16.124 5060

[8] 2007/06/01 18:20:24: Send Packet 200

[7] 2007/06/01 18:20:24: SIP Tx udp:192.168.16.124:5060:

SIP/2.0 200 Ok

Via: SIP/2.0/UDP 192.168.16.124:5060;branch=z9hG4bK421753744;rport=5060

From: "Fax" <sip:15@192.168.16.110>;tag=1026814437

To: <sip:0664771607997@192.168.16.110>;tag=ae3503080a

Call-ID: 167922533-5060-7@192.168.16.124

CSeq: 61 INVITE

Contact: <sip:15@192.168.16.110:5060>

Supported: 100rel, replaces, norefersub

Allow-Events: refer

Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, PRACK, INFO, PUBLISH, NOTIFY, SUBSCRIBE, MESSAGE

Accept: application/sdp

User-Agent: FL-Connect IP-PBX/2.0.3.1715

Content-Type: application/sdp

Content-Length: 152

 

v=0

o=- 29725 29725 IN IP4 192.168.16.110

s=-

c=IN IP4 192.168.16.110

t=0 0

m=audio 49966 RTP/AVP 0

a=rtpmap:0 pcmu/8000

a=ptime:20

a=sendrecv

 

[7] 2007/06/01 18:20:24: SIP Rx udp:192.168.16.124:5060:

ACK sip:15@192.168.16.110:5060 SIP/2.0

Via: SIP/2.0/UDP 192.168.16.124:5060;branch=z9hG4bK662941648;rport

From: "Fax" <sip:15@192.168.16.110>;tag=1026814437

To: <sip:0664771607997@192.168.16.110>;tag=ae3503080a

Call-ID: 167922533-5060-7@192.168.16.124

CSeq: 61 ACK

Contact: <sip:15@192.168.16.124:5060>

Max-Forwards: 70

Supported: replaces, path

User-Agent: Grandstream HT-502 1.0.0.39

Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE

Content-Length: 0

 

 

[7] 2007/06/01 18:20:24: SIP Rx udp:192.168.16.124:5060:

REGISTER sip:192.168.16.110 SIP/2.0

Via: SIP/2.0/UDP 192.168.16.124:5060;branch=z9hG4bK529997551;rport

Route: <sip:192.168.16.110:5060;lr>

From: <sip:15@192.168.16.110>;tag=780704202

To: <sip:15@192.168.16.110>

Call-ID: 1506464803-5060-1@192.168.16.124

CSeq: 2020 REGISTER

Contact: <sip:15@192.168.16.124:5060>

Authorization: Digest username="15", realm="192.168.16.110", nonce="2fa227c4316caf5070e594d543c13f78", uri="sip:192.168.16.110", response="98e3da31d23059ab4a7152113633198d", algorithm=MD5

Expires: 3600

Max-Forwards: 70

User-Agent: Grandstream HT-502 1.0.0.39

Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE

Content-Length: 0

 

 

[8] 2007/06/01 18:20:24: Resolve destination 43551: a udp 192.168.16.124 5060

[8] 2007/06/01 18:20:24: Resolve destination 43551: udp 192.168.16.124 5060

[8] 2007/06/01 18:20:24: Send Packet 200

[7] 2007/06/01 18:20:24: SIP Tx udp:192.168.16.124:5060:

SIP/2.0 200 Ok

Via: SIP/2.0/UDP 192.168.16.124:5060;branch=z9hG4bK529997551;rport=5060

From: <sip:15@192.168.16.110>;tag=780704202

To: <sip:15@192.168.16.110>;tag=790fb62a3d

Call-ID: 1506464803-5060-1@192.168.16.124

CSeq: 2020 REGISTER

Contact: <sip:15@192.168.16.124:5060>;expires=60

Content-Length: 0

 

 

[7] 2007/06/01 18:20:31: SIP Rx udp:192.168.16.12:5060:

INVITE sip:sippbx@192.168.16.110:5060;transport=udp SIP/2.0

Max-Forwards: 50

Via: SIP/2.0/UDP 192.168.16.12:5060;rport;branch=z9hG4bK04351950256772412077751

From: <sip:0664771607997@192.168.16.12;user=phone>;tag=637880302461171716578104820567

To: "Fax " <sip:+43724235108815@192.168.16.12>;tag=23234

Contact: <sip:0664771607997@192.168.16.12>

User-Agent: TELES.VoIPBOX 13.0b 885

Call-ID: 841706e2@pbx

CSeq: 17113 INVITE

Allow: INVITE,ACK,CANCEL,BYE,UPDATE,REGISTER,PRACK,INFO,NOTIFY,REFER

Content-Type: application/sdp

Content-Length: 290

 

v=0

o=- 277 1 IN IP4 192.168.16.12

s=-

c=IN IP4 192.168.16.12

t=0 0

m=image 29000 udptl t38

a=T38FaxVersion:0

a=T38MaxBitRate:14400

a=T38FaxUdpEC:t38UDPRedundancy

a=T38FaxRateManagement:transferredTCF

a=T38FaxFillBitRemoval:0

a=T38FaxTranscodingMMR:0

a=T38FaxTranscodingJBIG:0

 

[8] 2007/06/01 18:20:31: Resolve destination 43555: a udp 192.168.16.12 5060

[8] 2007/06/01 18:20:31: Resolve destination 43555: udp 192.168.16.12 5060

[8] 2007/06/01 18:20:31: Send Packet 100

[7] 2007/06/01 18:20:31: SIP Tx udp:192.168.16.12:5060:

SIP/2.0 100 Trying

Via: SIP/2.0/UDP 192.168.16.12:5060;rport=5060;branch=z9hG4bK04351950256772412077751

From: <sip:0664771607997@192.168.16.12;user=phone>;tag=637880302461171716578104820567

To: "Fax " <sip:+43724235108815@192.168.16.12>;tag=23234

Call-ID: 841706e2@pbx

CSeq: 17113 INVITE

Content-Length: 0

 

 

[7] 2007/06/01 18:20:31: UDP: Opening socket on port 52350

[7] 2007/06/01 18:20:31: UDP: Opening socket on port 52351

[7] 2007/06/01 18:20:31: UDP: Opening socket on port 52670

[7] 2007/06/01 18:20:31: UDP: Opening socket on port 52671

[8] 2007/06/01 18:20:31: Resolve destination 43556: url sip:15@192.168.16.124:5060

[8] 2007/06/01 18:20:31: Resolve destination 43556: udp 192.168.16.124 5060

[8] 2007/06/01 18:20:31: Send Packet INVITE

[7] 2007/06/01 18:20:31: SIP Tx udp:192.168.16.124:5060:

INVITE sip:15@192.168.16.124:5060 SIP/2.0

Via: SIP/2.0/UDP 192.168.16.110:5060;branch=z9hG4bK-a65ceff6d69e0acae419decacfc1a337;rport

From: <sip:0664771607997@192.168.16.110>;tag=ae3503080a

To: "Fax" <sip:15@192.168.16.110>;tag=1026814437

Call-ID: 167922533-5060-7@192.168.16.124

CSeq: 27896 INVITE

Max-Forwards: 70

Contact: <sip:15@192.168.16.110:5060>

Supported: 100rel, replaces, norefersub

Allow-Events: refer

Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, PRACK, INFO, PUBLISH, NOTIFY, SUBSCRIBE, MESSAGE

Accept: application/sdp

User-Agent: FL-Connect IP-PBX/2.0.3.1715

Content-Type: application/sdp

Content-Length: 298

 

v=0

o=- 29725 29727 IN IP4 192.168.16.110

s=-

c=IN IP4 192.168.16.110

t=0 0

m=image 52670 udptl t38

a=T38FaxVersion:0

a=T38MaxBitRate:14400

a=T38FaxUdpEC:t38UDPRedundancy

a=T38FaxRateManagement:transferredTCF

a=T38FaxFillBitRemoval:0

a=T38FaxTranscodingMMR:0

a=T38FaxTranscodingJBIG:0

 

[5] 2007/06/01 18:20:31: UDP: recvfrom returns WSAEWOULDBLOCK

[7] 2007/06/01 18:20:31: SIP Rx udp:192.168.16.124:5060:

SIP/2.0 100 Trying

Via: SIP/2.0/UDP 192.168.16.110:5060;branch=z9hG4bK-a65ceff6d69e0acae419decacfc1a337;rport=5060

From: <sip:0664771607997@192.168.16.110>;tag=ae3503080a

To: "Fax" <sip:15@192.168.16.110>;tag=1026814437

Call-ID: 167922533-5060-7@192.168.16.124

CSeq: 27896 INVITE

Contact: <sip:15@192.168.16.124:5060>

Supported: replaces, path

User-Agent: Grandstream HT-502 1.0.0.39

Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE

Content-Length: 0

 

 

[7] 2007/06/01 18:20:31: SIP Rx udp:192.168.16.124:5060:

SIP/2.0 200 OK

Via: SIP/2.0/UDP 192.168.16.110:5060;branch=z9hG4bK-a65ceff6d69e0acae419decacfc1a337;rport=5060

From: <sip:0664771607997@192.168.16.110>;tag=ae3503080a

To: "Fax" <sip:15@192.168.16.110>;tag=1026814437

Call-ID: 167922533-5060-7@192.168.16.124

CSeq: 27896 INVITE

Contact: <sip:15@192.168.16.124:5060>

Supported: replaces, path

User-Agent: Grandstream HT-502 1.0.0.39

Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE

Content-Type: application/sdp

Content-Length: 351

 

v=0

o=15 8000 8001 IN IP4 192.168.16.124

s=SIP Call

c=IN IP4 192.168.16.124

t=0 0

m=image 5004 udptl t38

a=T38FaxVersion:0

a=T38MaxBitRate:14400

a=T38FaxFillBitRemoval:0

a=T38FaxTranscodingMMR:0

a=T38FaxTranscodingJBIG:0

a=T38FaxRateManagement:transferredTCF

a=T38FaxMaxBuffer:400

a=T38FaxMaxDatagram:280

a=T38FaxUdpEC:t38UDPRedundancy

 

[8] 2007/06/01 18:20:31: Resolve destination 43557: url sip:15@192.168.16.124:5060

[8] 2007/06/01 18:20:31: Resolve destination 43557: udp 192.168.16.124 5060

[8] 2007/06/01 18:20:31: Send Packet ACK

[7] 2007/06/01 18:20:31: SIP Tx udp:192.168.16.124:5060:

ACK sip:15@192.168.16.124:5060 SIP/2.0

Via: SIP/2.0/UDP 192.168.16.110:5060;branch=z9hG4bK-8c2bf4c60797fca57c45945d91d80936;rport

From: <sip:0664771607997@192.168.16.110>;tag=ae3503080a

To: "Fax" <sip:15@192.168.16.110>;tag=1026814437

Call-ID: 167922533-5060-7@192.168.16.124

CSeq: 27896 ACK

Max-Forwards: 70

Contact: <sip:15@192.168.16.110:5060>

Content-Length: 0

 

 

[8] 2007/06/01 18:20:31: Resolve destination 43558: a udp 192.168.16.12 5060

[8] 2007/06/01 18:20:31: Resolve destination 43558: udp 192.168.16.12 5060

[8] 2007/06/01 18:20:31: Send Packet 200

[7] 2007/06/01 18:20:31: SIP Tx udp:192.168.16.12:5060:

SIP/2.0 200 Ok

Via: SIP/2.0/UDP 192.168.16.12:5060;rport=5060;branch=z9hG4bK04351950256772412077751

From: <sip:0664771607997@192.168.16.12;user=phone>;tag=637880302461171716578104820567

To: "Fax " <sip:+43724235108815@192.168.16.12>;tag=23234

Call-ID: 841706e2@pbx

CSeq: 17113 INVITE

Contact: <sip:sippbx@192.168.16.110:5060;transport=udp>

Supported: 100rel, replaces, norefersub

Allow-Events: refer

Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, PRACK, INFO, PUBLISH, NOTIFY, SUBSCRIBE, MESSAGE

Accept: application/sdp

User-Agent: FL-Connect IP-PBX/2.0.3.1715

Content-Type: application/sdp

Content-Length: 353

 

v=0

o=- 11568 11570 IN IP4 192.168.16.110

s=SIP Call

c=IN IP4 192.168.16.110

t=0 0

m=image 52350 udptl t38

a=T38FaxVersion:0

a=T38MaxBitRate:14400

a=T38FaxFillBitRemoval:0

a=T38FaxTranscodingMMR:0

a=T38FaxTranscodingJBIG:0

a=T38FaxRateManagement:transferredTCF

a=T38FaxMaxBuffer:400

a=T38FaxMaxDatagram:280

a=T38FaxUdpEC:t38UDPRedundancy

 

[7] 2007/06/01 18:20:31: SIP Rx udp:192.168.16.12:5060:

ACK sip:sippbx@192.168.16.110:5060;transport=udp SIP/2.0

Max-Forwards: 50

Via: SIP/2.0/UDP 192.168.16.12:5060;rport;branch=z9hG4bK16087354823085853174033

From: <sip:0664771607997@192.168.16.12;user=phone>;tag=637880302461171716578104820567

To: "Fax " <sip:+43724235108815@192.168.16.12>;tag=23234

Contact: <sip:0664771607997@192.168.16.12>

User-Agent: TELES.VoIPBOX 13.0b 885

Call-ID: 841706e2@pbx

CSeq: 17113 ACK

Allow: INVITE,ACK,CANCEL,BYE,UPDATE,REGISTER,PRACK,INFO,NOTIFY,REFER

Content-Length: 0

 

... and now the malformed packets sending beginns and the fax does not hear anything anymore....

 

[7] 2007/06/01 18:21:04: SIP Rx udp:192.168.16.124:5060:

REGISTER sip:192.168.16.110 SIP/2.0

Via: SIP/2.0/UDP 192.168.16.124:5060;branch=z9hG4bK1124454462;rport

Route: <sip:192.168.16.110:5060;lr>

From: <sip:15@192.168.16.110>;tag=780704202

To: <sip:15@192.168.16.110>

Call-ID: 1506464803-5060-1@192.168.16.124

CSeq: 2021 REGISTER

Contact: <sip:15@192.168.16.124:5060>

Authorization: Digest username="15", realm="192.168.16.110", nonce="2fa227c4316caf5070e594d543c13f78", uri="sip:192.168.16.110", response="98e3da31d23059ab4a7152113633198d", algorithm=MD5

Expires: 3600

Max-Forwards: 70

User-Agent: Grandstream HT-502 1.0.0.39

Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE

Content-Length: 0

 

 

[8] 2007/06/01 18:21:04: Resolve destination 43575: a udp 192.168.16.124 5060

[8] 2007/06/01 18:21:04: Resolve destination 43575: udp 192.168.16.124 5060

[8] 2007/06/01 18:21:04: Send Packet 200

[7] 2007/06/01 18:21:04: SIP Tx udp:192.168.16.124:5060:

SIP/2.0 200 Ok

Via: SIP/2.0/UDP 192.168.16.124:5060;branch=z9hG4bK1124454462;rport=5060

From: <sip:15@192.168.16.110>;tag=780704202

To: <sip:15@192.168.16.110>;tag=790fb62a3d

Call-ID: 1506464803-5060-1@192.168.16.124

CSeq: 2021 REGISTER

Contact: <sip:15@192.168.16.124:5060>;expires=60

Content-Length: 0

 

 

[7] 2007/06/01 18:21:07: Other Ports: 1

[7] 2007/06/01 18:21:07: Call Port: 841706e2@pbx#23234

[8] 2007/06/01 18:21:07: Resolve destination 43579: url sip:0664771607997@192.168.16.12

[8] 2007/06/01 18:21:07: Resolve destination 43579: udp 192.168.16.12 5060

[8] 2007/06/01 18:21:07: Send Packet BYE

[7] 2007/06/01 18:21:07: SIP Tx udp:192.168.16.12:5060:

BYE sip:0664771607997@192.168.16.12 SIP/2.0

Via: SIP/2.0/UDP 192.168.16.110:5060;branch=z9hG4bK-3648224c7aac549c0b09cfdd2d85cbf5;rport

From: "Fax " <sip:+43724235108815@192.168.16.12>;tag=23234

To: <sip:0664771607997@192.168.16.12;user=phone>;tag=637880302461171716578104820567

Call-ID: 841706e2@pbx

CSeq: 17113 BYE

Max-Forwards: 70

Contact: <sip:sippbx@192.168.16.110:5060;transport=udp>

RTP-RxStat: Dur=51,Pkt=1270,Oct=421640,Underun=494

RTP-TxStat: Dur=43,Pkt=93,Oct=29604

Remote-Party-ID: "sippbx" <sip:sippbx@192.168.16.12>;party=calling;screen=yes

Content-Length: 0

 

 

[8] 2007/06/01 18:21:07: Resolve destination 43580: url sip:35@192.168.16.123:2054;line=4ym9kfvn

[8] 2007/06/01 18:21:07: Resolve destination 43580: udp 192.168.16.123 2054

[8] 2007/06/01 18:21:07: Send Packet NOTIFY

[7] 2007/06/01 18:21:07: SIP Tx udp:192.168.16.123:2054:

NOTIFY sip:35@192.168.16.123:2054;line=4ym9kfvn SIP/2.0

Via: SIP/2.0/UDP 192.168.16.110:5060;branch=z9hG4bK-888c61cd7c75989ae6ad5634a91b8444;rport

From: <sip:15@localhost;user=phone>;tag=003530fce3

To: <sip:35@localhost>;tag=qdifvavd0l

Call-ID: 3c26700e3b25-np70hd4mtm3d

CSeq: 1373 NOTIFY

Max-Forwards: 70

Contact: <sip:192.168.16.110:5060;transport=udp>

Event: dialog

Subscription-State: active;expires=52

Content-Type: application/dialog-info+xml

Content-Length: 147

 

<?xml version="1.0"?>

<dialog-info xmlns="urn:ietf:params:xml:ns:dialog-info" version="51" state="full" entity="sip:15@localhost"></dialog-info>

 

[8] 2007/06/01 18:21:07: Resolve destination 43581: url sip:25@192.168.16.121:1030;line=ymmilo56

[8] 2007/06/01 18:21:07: Resolve destination 43581: udp 192.168.16.121 1030

[8] 2007/06/01 18:21:07: Send Packet NOTIFY

[7] 2007/06/01 18:21:07: SIP Tx udp:192.168.16.121:1030:

NOTIFY sip:25@192.168.16.121:1030;line=ymmilo56 SIP/2.0

Via: SIP/2.0/UDP 192.168.16.110:5060;branch=z9hG4bK-30132f7a1d1f797d683a25286b1f21ac;rport

From: <sip:15@localhost>;tag=6029d08633

To: <sip:25@localhost>;tag=gjc1casrya

Call-ID: 3c26701bc9ca-8rwmzrkyi31t

CSeq: 24243 NOTIFY

Max-Forwards: 70

Contact: <sip:192.168.16.110:5060;transport=udp>

Event: dialog

Subscription-State: active;expires=69

Content-Type: application/dialog-info+xml

Content-Length: 147

 

<?xml version="1.0"?>

<dialog-info xmlns="urn:ietf:params:xml:ns:dialog-info" version="51" state="full" entity="sip:15@localhost"></dialog-info>

 

[7] 2007/06/01 18:21:07: SIP Rx udp:192.168.16.12:5060:

SIP/2.0 200 OK

Via: SIP/2.0/UDP 192.168.16.110:5060;branch=z9hG4bK-3648224c7aac549c0b09cfdd2d85cbf5;rport

From: "Fax " <sip:+43724235108815@192.168.16.12>;tag=23234

To: <sip:0664771607997@192.168.16.12;user=phone>;tag=637880302461171716578104820567

Call-ID: 841706e2@pbx

CSeq: 17113 BYE

Allow: INVITE,ACK,CANCEL,BYE,UPDATE,REGISTER,PRACK,INFO,NOTIFY,REFER

Contact: <sip:0664771607997@192.168.16.12>

User-Agent: TELES.VoIPBOX 13.0b 885

Content-Length: 0

 

 

[5] 2007/06/01 18:21:07: BYE Response: Terminate 841706e2@pbx

[7] 2007/06/01 18:21:07: SIP Rx udp:192.168.16.121:1030:

SIP/2.0 200 Ok

v: SIP/2.0/UDP 192.168.16.110:5060;branch=z9hG4bK-30132f7a1d1f797d683a25286b1f21ac;rport=5060

f: <sip:15@localhost>;tag=6029d08633

t: <sip:25@localhost>;tag=gjc1casrya

i: 3c26701bc9ca-8rwmzrkyi31t

CSeq: 24243 NOTIFY

l: 0

 

 

[7] 2007/06/01 18:21:07: SIP Rx udp:192.168.16.123:2054:

SIP/2.0 200 Ok

v: SIP/2.0/UDP 192.168.16.110:5060;branch=z9hG4bK-888c61cd7c75989ae6ad5634a91b8444;rport=5060

f: <sip:15@localhost;user=phone>;tag=003530fce3

t: <sip:35@localhost>;tag=qdifvavd0l

i: 3c26700e3b25-np70hd4mtm3d

CSeq: 1373 NOTIFY

l: 0

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