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Registration Expiration Issues


jlumby
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I am having an issue with several different products registering to PBXnSIP, mostly Audiocodes, Grandstream, Quickphones, and Adtran. The following is a packet capture of an Audiocodes gateway. When I set the registration expiration to 3600 on the audiocodes (as you can see in the packet capture below), the PBX replies with 29 I am not sure why this is. There is no nat going on between the gateway and the PBXnSIP, as well as other devices such as cisco phones do not have this problem, and they successfully register for the full 3600 to the same domain on the same switch. I am very concerned about such short registration time, since when I once had all of my extensions set to register every 60 this high frequency caused processor spikes that led to poor call quality. Now that I have the majority of my extensions set for 3600 the spikes, and quality issues have instantly gone away. I have even noticed that this same problem exists when registering one PBXnSIP to another. My current PBXnSIP version is 3.3.2.3183 (Win32)

 

 

From AudioCodes to PBXnSIP:

No. Time Source Destination Protocol Info

11 0.612851 10.0.0.131 10.0.0.6 SIP Request: REGISTER sip:voipp.twincitytelephone.com

 

Frame 11 (832 bytes on wire, 832 bytes captured)

Ethernet II, Src: AudioCod_18:a8:e9 (00:90:8f:18:a8:e9), Dst: Supermic_83:f6:cb (00:30:48:83:f6:cb)

Internet Protocol, Src: 10.0.0.131 (10.0.0.131), Dst: 10.0.0.6 (10.0.0.6)

User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)

Session Initiation Protocol

Request-Line: REGISTER sip:voipp.twincitytelephone.com SIP/2.0

Method: REGISTER

[Resent Packet: False]

Message Header

From: <sip:213@voipp.twincitytelephone.com>;tag=100eb030-8300000a-13c4-50029-a-215d8afe-a

SIP from address: sip:213@voipp.twincitytelephone.com

SIP tag: 100eb030-8300000a-13c4-50029-a-215d8afe-a

To: <sip:213@voipp.twincitytelephone.com>

SIP to address: sip:213@voipp.twincitytelephone.com

Call-ID: 100fc348-8300000a-13c4-50029-a-2a94a760-a

CSeq: 2 REGISTER

Sequence Number: 2

Method: REGISTER

Via: SIP/2.0/UDP 10.0.0.131:5060;rport;branch=z9hG4bK-b-2b4a-2a9b4f24

Transport: UDP

Sent-by Address: 10.0.0.131

Sent-by port: 5060

RPort: rport

Branch: z9hG4bK-b-2b4a-2a9b4f24

Max-Forwards: 70

Supported: replaces,100rel

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

Expires: 3600

Authorization: Digest username="213",realm="voipp.twincitytelephone.com",nonce="afa4b325771a1d526dd8f81c14701937",uri="sip:voipp.twincitytelephone.com",response="a9e3feb7a512a2ec7762275f25a30797",algorithm=MD5

Authentication Scheme: Digest

Username: "213"

Realm: "voipp.twincitytelephone.com"

Nonce Value: "afa4b325771a1d526dd8f81c14701937"

Authentication URI: "sip:voipp.twincitytelephone.com"

Digest Authentication Response: "a9e3feb7a512a2ec7762275f25a30797"

Algorithm: MD5

Contact: <sip:213@10.0.0.131:5060>

Contact Binding: <sip:213@10.0.0.131:5060>

URI: <sip:213@10.0.0.131:5060>

SIP contact address: sip:213@10.0.0.131:5060

User-Agent: MP202 B 2FXS/2.6.4_p5_1_build_9

Content-Length: 0

 

From PBXnSIP to AudioCodes

No. Time Source Destination Protocol Info

12 0.623656 10.0.0.6 10.0.0.131 SIP Status: 200 Ok (1 bindings)

 

Frame 12 (458 bytes on wire, 458 bytes captured)

Ethernet II, Src: Supermic_83:f6:cb (00:30:48:83:f6:cb), Dst: AudioCod_18:a8:e9 (00:90:8f:18:a8:e9)

Internet Protocol, Src: 10.0.0.6 (10.0.0.6), Dst: 10.0.0.131 (10.0.0.131)

User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)

Session Initiation Protocol

Status-Line: SIP/2.0 200 Ok

Status-Code: 200

[Resent Packet: False]

Message Header

Via: SIP/2.0/UDP 10.0.0.131:5060;rport=5060;branch=z9hG4bK-b-2b4a-2a9b4f24

Transport: UDP

Sent-by Address: 10.0.0.131

Sent-by port: 5060

RPort: 5060

Branch: z9hG4bK-b-2b4a-2a9b4f24

From: <sip:213@voipp.twincitytelephone.com>;tag=100eb030-8300000a-13c4-50029-a-215d8afe-a

SIP from address: sip:213@voipp.twincitytelephone.com

SIP tag: 100eb030-8300000a-13c4-50029-a-215d8afe-a

To: <sip:213@voipp.twincitytelephone.com>;tag=1a11ed798c

SIP to address: sip:213@voipp.twincitytelephone.com

SIP tag: 1a11ed798c

Call-ID: 100fc348-8300000a-13c4-50029-a-2a94a760-a

CSeq: 2 REGISTER

Sequence Number: 2

Method: REGISTER

Contact: <sip:213@10.0.0.131:5060>;expires=29

Contact Binding: <sip:213@10.0.0.131:5060>;expires=29

URI: <sip:213@10.0.0.131:5060>

SIP contact address: sip:213@10.0.0.131:5060

Date: Tue, 21 Jul 2009 22:16:12 GMT

Content-Length: 0

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