I have thew same problem.
Ui tried with dyn dns in the externip field in sip.conf but I think the Asterisk
does not allow this. Unfortunally I have every day a new ip. Maybe I can write a
script witch takes my actual ip from externat and put it into the externip
field. Maybe this solves the problem.
-----Urspr?ngliche Nachricht-----
Von: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] Im Auftrag von Gareth Blades
Gesendet: Donnerstag, 4. Mai 2006 09:59
An: Asterisk Users Mailing List - Non-Commercial Discussion
Betreff: Re: [Asterisk-Users] SIP Phones behind dynamic IPs
I would also recomend that you upgrade to the latest firmware 1.0.2.13
(contact grandstream) as it does fix some registeration issues and have
extra NAT/STUN features.
On Wed, 2006-05-03 at 17:15, Chris Bagnall wrote:> Greetings list,
>
> I'm coming across an issue with some of the GXP-2000 phones we have out
in
> the wild at clients' employees' homes. In most cases they're
behind consumer
> ADSL NAT routers on a dynamic IP from their ISP.
>
> In a nutshell, the phone is unable to be called unless it's restarted
first,
> after which it's fine for a good few hours, then it stops working until
> restarted again.
>
> The problem doesn't seem to be anywhere near as regular with users that
are
> on cable connections (these tend to have much more "sticky" IP
addresses -
> they change only every few months rather than every time the ADSL router
> connects), and non-existent on ADSL connections with static IPs.
>
> I've tried various permutations - with STUN, without STUN, NAT
keep-alives
> down as low as 10 seconds, nat=yes in sip.conf, ports forwarded to the
> phone, ports *not* forwarded to the phone, etc.
>
> I think what's happening is that the ADSL router is reconnecting after
a
> break in the connection (as it should), getting a different IP, but the
> phones don't seem to be recognising they've got a different IP and
updating
> the asterisk server with the good news.
>
> Has anyone else encountered similar issues? Anything else I can try
(bearing
> in mind I have no control over the ADSL connections the users are
subscribed
> to)?
>
> Thanks in advance.
>
> Regards,
>
> Chris
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