[cisco-voip] Voice Hardware Questions

[Wes Sisk]

what reason does the telco offer for not being able to deliver a t1/ 
pri to the site?  if it's because of physical distance you're going  
to have a challenge. the voice quality tends to suffer on long analog  
lines with most Cisco analog voice port modules.

"trunk group of DID's with no CID" sounds like what we call t1-cas or  
robbed bit signaling, or a voice trunk.  it gives you 24 channels of  
voice on a T1.  your vwic2-1mft-t1/e1 would be the proper termination  
for this.

/Wes
On Feb 14, 2006, at 12:03 PM, steve.siltman at assurant.com wrote:


I've been getting conflicting answers to hardware needed for a new  
remote site we are setting up.  I blame myself more due to the fact  
that I'm still very green at this stuff and my inability to ask the  
question intelligently enough.  I wanted to throw this at the trusty  
cisco-voip group of peeps.

New Remote Office Equipment:
Cisco 2821-V/K9 with PVDM2-32U48 using a VWIC2-1MFT-T1/E1

Having an issue with the LEC on getting a T1/PRI into the office.

The choices we have been given:

1.  Backhaul a T1/PRI to a CO thats farther away but the costs just  
doubled.
        - I can use the above equipment with this option but do I  
have to worry about distance to the CO?

2.  Analog group of lines (8 POTS lines)
       -  With this option, my Multi-Flex T1 card is useless.  Will  
the EVM-HD-8FS/DID module do the trick for me?   Can I use the DID  
ports on this module or do I need to add the EM-HDA-6FXO module?

3.  Trunk group of DID's with no CID
       - What hardware module would I need for this option?  This  
option is being talked about the most because of cost.

I've got a Call Manager Cluster at the home office with this site  
using SRST if the wan link goes away.  I'm running CM 4.1(3)sr1.

Any response would be appreciated.   This is our first remote office  
and its been challenging but loads of fun at the same time.

Steve Siltman
Assurant, Inc.
Senior Network Analyst
Work: 651-361-4752
Cell: 651-336-5563
steve.siltman at assurant.com

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