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T21P E2 Downgrade Firmware & PJSIP
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OSPFs Offline
Junior Member

Posts: 2
Joined: Feb 2018
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Post: #3
RE: T21P E2 Downgrade Firmware & PJSIP
(02-10-2018 10:00 AM)Jensen_Yealink Wrote:  Could you sent the PCAP, config.bin and syslog with level 6 to as, so we can check if it is the same to previous.

On the other hands, I would like to share more about the Codec Negotiation.:
1/ The phone sent invite with all Codec enable on the phone to server side.
2/ The server side sent 200OK back with Codec that the server side would like the phone to used.
3/ The phone choose the Codec that server side feedback.

For the firmware you used, it is for Russia area.


I'm sorry for my late response. In attachment logs from phone and one pcap from server. There was phone call from T21P to client with only G722 codec. T21P connected to Asterisk 13 with PJSIP driver, when it connected with SIP we have no such problems.

Attached File(s)
.zip (Size: 213.49 KB / Downloads: 0)
.bin  config.bin (Size: 188.52 KB / Downloads: 0)
(This post was last modified: 02-14-2018 09:57 AM by OSPFs.)
02-14-2018 07:04 AM
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T21P E2 Downgrade Firmware & PJSIP - OSPFs - 02-09-2018, 07:46 AM
RE: T21P E2 Downgrade Firmware & PJSIP - OSPFs - 02-14-2018 07:04 AM

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