Zoiper crashes on SIP call

Question

I am trying to place a SIP call and Zoiper consistently crashes with a specific SIP trunk. Here is the SIP conversation up to the point of the crash:

No.     Time               Source                Destination           Protocol Length Info                                                            dst    New Column

   1221 16:10:35.506635    192.168.10.63         192.168.11.65         SIP/SDP  870    Request: INVITE sip:11080@192.168.11.65;transport=UDP |         5060   1221

   1222 16:10:35.507980    192.168.11.65         192.168.10.63         SIP      433    Request: OPTIONS sip:ping@publicIP.com |                        36706  1222

   1226 16:10:35.512728    192.168.10.63         192.168.11.65         SIP      676    Status: 200 OK |                                                5060   1226

   1227 16:10:35.513495    192.168.11.65         192.168.10.63         SIP      477    Status: 100 Trying |                                            36706  1227

   1228 16:10:35.517176    192.168.11.65         192.168.10.63         SIP/SDP  712    Status: 200 OK |                                                36706  1228

   1232 16:10:35.522722    192.168.10.63         192.168.11.65         SIP      490    Request: ACK sip:11080@192.168.11.65:5060 |                     5060   1232

   2529 16:10:39.685737    192.168.10.63         192.168.11.65         SIP      645    Request: REGISTER sip:192.168.11.65;transport=UDP  (1 binding) |  5060   2529

   2530 16:10:39.686891    192.168.11.65         192.168.10.63         SIP      448    Status: 200 OK  (0 bindings) |                                  38654  2530

Any idea what is wrong?

Comments

Which version and platform of zoiper are you using?

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Hi, you still need help?

Answer 1

Hi,

By using UDP some phones seems not to handle it, please use TCP.

I could reproduce the issue on an older phone.

Best Regards,

Paul