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Yate server => Yate bugs => Topic started by: abma on June 10, 2016, 03:05:26 AM

Title: SRTP audio from Snom 715 is dropped with HMAC recv: ... calc: ... seq: ...
Post by: abma on June 10, 2016, 03:05:26 AM
When using SRTP with a Snom 715, SRTP packets are dropped by yate with:

Code: [Select]
SRTP HMAC recv: e4dfae70 calc: 0a1071eb seq: 66331 [0x7f47c801d5a0]
more details at http://forum.yate.ro/index.php?topic=1201.0

when rtp is forwarded / the phones directly communicate, it works fine.

sorry, i'm still not sure if this is a yate or a snom bug. :-|


I've created a bug report at snom, (https://helpdesk.snom.com/support/tickets/4318) too, see the packet dump of such a call (https://helpdesk.snom.com/helpdesk/attachments/6024646778).
Title: Re: SRTP audio from Snom 715 is dropped with HMAC recv: ... calc: ... seq: ...
Post by: abma on June 13, 2016, 04:17:37 PM
oh, sorry, the snom bug tracker requires an account.

without login: https://abma.de/tmp/packetdump
Title: Re: SRTP audio from Snom 715 is dropped with HMAC recv: ... calc: ... seq: ...
Post by: abma on June 14, 2016, 08:50:07 AM
snom doesn't see an error in the trace, so why is yate discarrding the packets?
Title: Re: SRTP audio from Snom 715 is dropped with HMAC recv: ... calc: ... seq: ...
Post by: abma on June 16, 2016, 08:11:19 AM
ok, i migrated to FreeSwitch there it works fine: i'm pretty sure this is a yate bug.