Two phones with identical settings (T48G and T48S)- only one connects to SIP server - Printable Version +- Yealink Forums (http://forum.yealink.com/forum) +-- Forum: IP Phone Series (/forumdisplay.php?fid=4) +--- Forum: T4x Series (/forumdisplay.php?fid=31) +--- Thread: Two phones with identical settings (T48G and T48S)- only one connects to SIP server (/showthread.php?tid=42089) |
Two phones with identical settings (T48G and T48S)- only one connects to SIP server - sani390 - 09-11-2018 01:24 PM Hey guys, another issue, but this time I can provide more information. Maybe you've read my old thread about the (probably) bricked phone by faulty firmware update. Since I had to replace it rather quickly I ordered a new phone, this time the T48S. I upgraded to the latest firmware, then I took a working T48G and copied all settings and imported the generated .cfg. But then: Register failed. After a a quick chat with the provider of our sip it emerged that the phone seems to have an issue. I double checked all settings, in the end it still wouldn't register. Edit: Confirmed- it's no problem for multiple phones to connect to one account! Then I fired up pcap and wireshark and noticed something interesting. The working phone establishes a solid TCP and later TLSv1.2 session with the registration server and starts transfering application data just fine. The non working phone tries the same but seems to send the server a "reset connection" flag for whatever reason. (I am just good with computers, but not a network professional ) I will enclose the faulty pcap. The phone is IP 192.168.178.29 and the reg. server 217.0.30.196 I would be incredibly happy if we could solve this mistery. |