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

[Eric Knudson]

Tony,

If I remember correctly, you're not going to be able to hand off a
call to your MICAs using those T1s - I believe they're voice only. You
may need to go with an NM-1CT1 (or equivalent). The only boxes that'll
handle both voip and modem calls on the same hardware are nextport
platforms (AS5350, etc..).

If you've got a pri configured, can you configure "isdn incoming-voice
data," or only "isdn incoming-voice voice?" I think that would be a
sign that you're not going to be able to use the MICAs with those T1s.

Eric


On Fri, 28 Jan 2005 12:48:08 -0600, Tony Kava <ciscovoip at pottcounty.com> wrote:
> 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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