[VoIP] Caller ID Number

[Martin Harriss]

Paul Wills wrote:
>> From: Martin Harriss <martin at Princeton.EDU>
>> Date: 2007/01/26 Fri PM 12:18:48 CST
>> To: Voice Over IP Tandem for Analog Switches <voip at ckts.info>
>> Subject: Re: [VoIP] Caller ID Number
> 
>> Paul Wills wrote:
>>> ...
>>> So far I have to say that the Cisco 3810 is, by far, the most cost effective 
>>> way to implement a CNET installation.  The sound quality is way ahead of the 
>>> Digium cards and, looking on eBay, one can find one for a lot less money.
>>>
>>> A tip of the switch cover should go out to John Jones for coming up with it.
>> Question: how do you connect the Cisco unit to Asterisk?  Does it have 
>> to be via a T1, or can you use the Ethernet for this?
>>
> 
> That's the great part.  A simple Ethernet connection is all one needs.  Thus, the router can live in the equipment room and the Asterisk box anywhere else.

Now that's very cool.  I guess I hadn't realized that you could do this 
-- I thought you needed a T1 card in the computer.

Given that, I've been looking through the docs on Cisco's web site.  I 
didn't see which protocol was used over Ethernet: does this device speak 
SIP, or does it use something else?

Thanks,
Martin