[cisco-voip] Authenticated SIP trunk
Hinson, Greg
Greg_Hinson at adp.com
Tue Sep 11 15:08:58 EDT 2007
I have asterisk authenticating to a SIP provider now. I was also
successful at getting CUCM 6 to integrate with Asterisk, if I turned
authentication off between CUCM and Asterisk. In this scenario, calls
to/from CUCM and asterisk/VOIP provider seem to work fine.
-Greg
-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Matt Slaga (US)
Sent: Tuesday, September 11, 2007 12:03 PM
To: Kelemen Zoltan; Christian Hennrich
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Authenticated SIP trunk
What I mean by "not single line sip providers" is that most companies
are not going to purchase single sip trunk lines from a provider. They
will go to a SIP wholesaler or SIP trunk provider, not manage 50 or so
individual line trunks.
The only people trying to do this is home lab users, and Cisco isn't
going to provide this type of functionality and R&D just to make home
lab users happy.
-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Kelemen Zoltan
Sent: Tuesday, September 11, 2007 12:44 PM
To: Christian Hennrich
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Authenticated SIP trunk
I wonder what would they consider "not a small amount". When you think
that one selling point in IP telephony used to be "free interoperability
with other VoIP networks", the thing is pretty difficult to obtain.
True, once external VoIP link might not have been important at all,
however, with the growth of companies (and even some "serious ones")
offering cheap VoIP connectivity, mostly through SIP, not being able to
interconnect to those with your new, shiny and expensive VoIP system
just seems a bit ... underwhelming.
</flame>
I did such a thing once, inserting an Asterisk server between the CCM
and the SIP provider (and thus let Asterisk handle authentication),
however, for one reason or another, the thing wasn't really stable, so
the idea was dropped (that same Asterisk box remains as a voicemail,
though :) ). You might have more luck with a proper SIP server (Asterisk
being an IP PBX, but not a complete SIP implementation) or, perhaps if
you can talk your provider into allowing unauthenticated connections
from your IP (good luck with that but it's an idea, anyway)
regards,
Zoltan
Matt Slaga (US) wrote:
>
> This cannot be done. Cisco focuses on wholesale trunks, not on single
> line sip provider. I have only been able to get outbound dialing to
> work, and when I questioned the CCM BU about it, they said that is not
> even on their roadmap because of the small amount of requests.
>
>
>
> *From:* cisco-voip-bounces at puck.nether.net
> [mailto:cisco-voip-bounces at puck.nether.net] *On Behalf Of *Christian
> Hennrich
> *Sent:* Tuesday, September 11, 2007 3:03 AM
> *To:* cisco-voip at puck.nether.net
> *Subject:* [cisco-voip] Authenticated SIP trunk
>
>
>
> Hi,
>
> I'm playing around with CM 6.0 and I'm trying to call over an carpo.de
> SIP trunk. Unfortunately this does not work.
>
> Has anyone succesfully configured CM 5.X or 6.X to use authenticated
> SIP trunks? sipgate or any other free SIP provider?
>
> I have followed the Cisco manuals to configure the trunk in the
> security guide, but with no success. A guidance would be very helpful.
>
> Cheers
> Christian
>
>
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