On 23/03/2017 01:17, Dave Liquorice wrote:
> On Wed, 22 Mar 2017 17:40:01 -0000 (UTC), Andrew Benham wrote:
>
>> So I've read the dire warnings about NAT with SIP on the AAISP Knowledge
>> Base and Wiki. I'm a Home::1 customer, so I have a single IPv4 address
>> but many IPv6 addresses.
>
> Home::1 here also but I've not got myself a bunch of IPv6 address's
> yet. I do run SIP behind NAT but with Sipgate as the provider and
> using STUN. Kit is a Siemens Gigaet N300A IP, combined POTS, SIP,
> DECT & TAM box, IPv4.
>
> I played with AA's SIP service but, IIRC, couldn't solve a one way
> audio issue or maybe I could solve that but something else would
> break.
It might help to know that I'm running a Gigaset N300 IP behind a NAT'd
IPv4 address via a home::1 connection, using AA's SIP service. Like you
(OP), I was unable to find easily an IPv6 capable ATA.
Long story short, I configured the Gigaset to use a non-standard source
port and voice data range, with dest. server port set to the standard
5060. The timeout on the Gigaset for connections is 180 sec., whilst
the default UDP tracking timeout on my MikroTik router (RB951G) was also
180 sec. I couldn't achieve a stable connection until I increased the
Mikrotik timeout to 240 sec. and, tempting fate, the SIP service now
seems to work well. I didn't need to enable the "SIP Helper" on the
router. I've set the AA line profile to 95%.
I realise that most other consumer routers don't permit the conntrack
timeouts to be adjusted as easily, but I thought I'd throw in this
anecdote just in case it does help.
--
DaverN