pmenico Posted May 19, 2008 Report Share Posted May 19, 2008 Hello: I tried sending a SIP NOTIFY message from my application to the snom phone to control the message waiting lamp: NOTIFY sip:251@192.168.1.43:5060 SIP/2.0 t: ;tag=78923 f: ;tag=4442 Date: May 12, 2008 11:45:23 GMT Call-Id: 3c268afd0ea6-tk5ueq9zigfb@snom360-000413230077 CSeq: 20 NOTIFY Event: message-summary Content-Type: application/simple-message-summary Content-Length: 44 Messages-Waiting: no Voicemail: 0/0 (0/0) TcpClient tcpc = new TcpClient(); int port = 5060; IPaddress = "192.168.1.43"; But I could not even open the port as the connection request is denied. I also tried port 2051 as suggested in this example on the snom website but the result was the same (Connection rejected/denied). INFO sip:123@192.168.4.185:2051;line=z6yxt6av SIP/2.0 v: SIP/2.0/UDP 192.168.0.8:5060;branch=z9hG4bK-c5036dd36491b35dba0953bcd912b2a7;rport f: ;tag=24433 t: ;tag=ga2hjuhxot i: 3c268afd0ea6-tk5ueq9zigfb@snom360-000413230077 CSeq: 1 INFO Max-Forwards: 70 m: c: message/sipfrag l: 68 From: To: 123 Can anyone explain what I am doing wrong or if there is another way to toggle the MWI on the snom phones? Thank you. Quote Link to comment Share on other sites More sharing options...
pmenico Posted May 20, 2008 Author Report Share Posted May 20, 2008 I made some progress today by using UDP (silly me): but I still have a problem. Is there a way to bypass this? Some phone setting that I missed? Below is the telephone trace: Received from udp:192.168.1.44:2057 at 20/5/2008 19:52:49:680 (453 bytes): NOTIFY sip:251@192.168.1.43:2057;line=m00xv4ly SIP/2.0 Via: SIP/2.0/UDP 192.168.1.44:2057;branch=z9hG4bK5e3acadf;rport To: <sip:251@192.168.1.43:2057;line=m00xv4ly> From: ;tag=4442 Date: Tuesday, May 20, 2008 5/20/2008 7:52:49 PM Call-Id: 3c268afd0ea6-tk5ueq9zigfb@snom360-000413230077 CSeq: 102 NOTIFY Event: message-summary Content-Type: application/simple-message-summary Content-Length: 45 Messages-Waiting: yes Voicemail: 1/1 (1/1) -------------------------------------------------------------------------------- Sent to udp:192.168.1.44:2057 at 20/5/2008 19:52:49:690 (424 bytes): SIP/2.0 403 Use Proxy Via: SIP/2.0/UDP 192.168.1.44:2057;branch=z9hG4bK5e3acadf;rport=2057 From: <;tag=4442> To: <sip:251@192.168.1.43:2057;line=m00xv4ly> Call-ID: 3c268afd0ea6-tk5ueq9zigfb@snom360-000413230077 CSeq: 102 NOTIFY Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK, MESSAGE, INFO Allow-Events: talk, hold, refer Supported: timer, 100rel, replaces, callerid Content-Length: 0 Quote Link to comment Share on other sites More sharing options...
Vodia PBX Posted May 20, 2008 Report Share Posted May 20, 2008 Well the phone thinks that this is DoS. It wants you to send the request from the PBX IP address and port. There is a option to turn this off on the phone, but then the phone gets vulnerable for simple DoS. Same thing for TCP. You can set the phone to accept TCP connections (which is off by default), but then again you risk that someone plays DoS with the phone in your network. Quote Link to comment Share on other sites More sharing options...
pmenico Posted May 21, 2008 Author Report Share Posted May 21, 2008 For this to work make sure you turn Filter Packets from Registrar: off on the snom telephone otherwise the phone will reject this message. Thank you for your help. Turns on and off the MWI now. Quote Link to comment Share on other sites More sharing options...
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