07-10-2002 08:35 AM - edited 03-01-2019 11:47 PM
I have two 2621 routers that I am trying to connect back to back to test legacy voice equipment in a VoIP scenario. How can I make the two routers talk to each other with the T1 CSU/DSU WICs? Looking for CLI commands and physical cable type.
07-10-2002 08:47 AM
I have 2-2611's with WICs connected back to back using a cross over cable with 1,2 4, & 5 (TR to RX, RX to TX) to simulate the WAN Connection. Sorry can't help with the VOIP part
07-10-2002 09:23 AM
Would you be willing to share your IOS configuration for the T1 connections? That is where I am having the problem.
Thank you,
John
07-10-2002 09:37 PM
Not sure which T1 WIC you have - there are 2 options:
1. FT1 WIC - shows up as serial x/y in the configuration:
interface serial x/y
service-module t1 framing esf
service-module t1 linecode b8zs
service-module t1 clock source internal (needs to be line on the other side)
service-module t1 timeslots 1-24 speed 64
TO VERIFY - show service-module serial x/y
2. MFT WIC - shows up as controller t1 x/y in the configuration:
controller t1 x/y
framing esf
linecode b8zs
clock source internal (needs to be line on the other side)
channel-group 0 timeslots 1-24 speed 64
TO VERIFY - show controller t1 x/y
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