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New Member

Voice & Data on the same T1

I have the follwoing scenario:

My service provider offers me a fractional T1 service with 10 voice ports and 8 data ports (512K) for Internet access. I have an MRP3 on a ICS7750 with a VWIC-1MFT-T1 port and the IOS with the FW/IPSEC feature set.

My question is the following: Can I take the T1 from the provider and connect it to the VWIC-1MFT-T1 port and use it for voice and data? Can I use the channel-group and the ds0-group on the same controler? Are there any limitations to this configuration?



New Member

Re: Voice & Data on the same T1

There is no limitaions to configuring both ds0 and channel-groups. Questions to ask provider is what type of signaling or isdn switch type to use ( pri-group timeslots 9-18). Here is an example using ds0.

controller T1 1/0

framing esf

linecode b8zs

cablelength short 133

channel-group 1 timeslots 1-8 speed 64

ds0-group 2 timeslots 9-18 type e&m-wink-start


voice-port 1/0:2

output attenuation 3

echo-cancel coverage 32

echo-cancel suppressor

no comfort-noise

timeouts interdigit 2


dial-peer voice 1 pots

preference 1

destination-pattern 9T

port 1/0:2