[cisco-voip] Cisco 3800, PRI, Digital Modems

[Walenta, Phil]

Last time I checked, the routers only supported voice, or modems, not
both simultaneously across a single PRI or T1. Only device I know that
supports both correctly is the AS series (AS53XX, AS54XX etc). I'm
hoping that's changed, but I'm not seeing anything encouraging on CCO.

-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Tony Kava
Sent: Friday, January 28, 2005 12:48 PM
To: 'cisco-voip at puck.nether.net'
Subject: [cisco-voip] Cisco 3800, PRI, Digital Modems

Greetings:

I have just installed a Cisco 3825 router with a dual channelized T1
module and a digital modem network module populated for 6 modems
(MICA-6DM).  I've configured the router to use a new T1 PRI circuit, and
I'm able to successfully route calls to and from the PSTN using Asterisk
on Linux as a SIP proxy for a Cisco 7960 IP phone.

Now I'm trying to configure the digital modems to answer modem calls.  I
have gone through a number of examples on Cisco's site, and I've read
most of their pages on the subject.  I have found a great deal of
information related to configuring the modems and their respective lines
as well as using modem pass-through to another router.  Unfortunately I
have been unable to make them answer a call.

Is there a way to setup a dial-peer to direct calls to a digital modem?
Is there anyone out there who operates a router with a similar setup? I
would be interested to see a working config for dial-in access directly
into the router.  I would provide my config, but in my frustration I
have already removed all modem-related settings so that I can start from
scratch.

Thanks in advance for any assistance.

Regards,

--
Tony Kava
Senior Network Administrator
Pottawattamie County, Iowa


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