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IPv6 Problem
Author Message
DarrenWilliams Offline
Junior Member

Posts: 3
Joined: Nov 2018
Reputation: 0
Post: #1
IPv6 Problem
I have an IPv6 problem on my T46S.

Firmware is:

I have multiple lines configured and when using the IPv6 test line I have set up, though it works as I have both IPv4 and 6, the SDP and VIA in an outgoing INVITE has the IPv4 info.

The INVITE correctly goes to the IPv6 address:

INVITE sip:* SIP/2.0
Via: SIP/2.0/TCP;branch=z9hG4bK3608249627
From: "Daz" <>;tag=1006942405
To: <sip:*>
Call-ID: 4_72348378
Contact: <sip:200@;transport=TCP>
Content-Type: application/sdp
Max-Forwards: 70
User-Agent: Yealink SIP-T46S
Allow-Events: talk,hold,conference,refer,check-sync
Supported: replaces
Content-Length: 308

o=- 20005 20005 IN IP4
s=SDP data
c=IN IP4
t=0 0
m=audio 11942 RTP/AVP 9 0 8 18 101
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15

Hopefully, there is an easy fix?

07-26-2019 03:42 PM
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Messages In This Thread
IPv6 Problem - DarrenWilliams - 07-26-2019 03:42 PM
RE: IPv6 Problem - Garry_Yealink - 08-05-2019, 02:49 AM
RE: IPv6 Problem - markcowell23 - 09-03-2019, 01:59 PM
RE: IPv6 Problem - justingoldberg - 09-25-2019, 08:58 PM

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