[asterisk-users] ISP trunk session ID?

[Asghar Mohammad]

hi,
you can try to change sip user agent and sdp session s , owner in sip
config same as your phone,s (modem).
asterisk by default send user agent = asterisk version , s= asterisk , o=
asterisk.
some providers are not happy if they see "asterisk" word :)



On Sat, May 11, 2013 at 12:27 AM, Sergej Petrovsky <sergej5561 at yandex.com>wrote:

> Hi folks,
>
> What I trying to do here is exactly this:
> http://www.asteriskdocs.org/en/2nd_Edition/asterisk-book-html-chunk/I_sect14_tt599.html
>
> My provider given me a Huawei modem which have 2 phone jacks on it, but
> instead of using it I rather redirect my POTS number to my PBX. I ran into
> couple of bumps on the road but now it's "half-working". I extracted the
> SIP user, pass, server info from the modem and even managed to put my PBX
> into the same VLAN they use, on the exact same IP address like the modem
> but there is 1 problem:
> It seems this modem also sends some session ID to the ISP's sip server,
> something what Asterisk doesn't by default. So if I do this:
>
> 1, Let the modem register at the sip service (the phone number can be
> called and ringing out)
> 2, Disconnect the modem
> 3, Let the PBX connect to the SIP server
> 4, PBX accepts the calls
> 5, About 5-10 minutes later it stops doing it, when I call the number it
> shows busy (beep, beep, beep), no matter if I restart Asterisk or not it
> won't work anymore just if I do the same trick again
>
> I'm sure the remote SIP server breaks the voip channel or something, it
> does NOT drop me out tho, my PBX can register any time without problem but
> no packets will ever come forward me anymore. It's kind of hard to solve
> this from 1 side.
>
> There must be some solution for this.
>
> Please help!
>
> Thank You,
> Sergej
>
>
>
> --
> _____________________________________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
> New to Asterisk? Join us for a live introductory webinar every Thurs:
>                http://www.asterisk.org/hello
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20130511/e744ea5f/attachment.htm>