[cisco-voip] MUX 2 E1's into 1 (including 3x channels)

[Dana Tong]

Hi everyone,

I have an odd request. Customer has a device in Aus, and another in the USA.
These devices both have two E1 interfaces using CCS.

There is a 2811 at each site, with one 2 port MFT-T1/E1 card, and one G.703 card.

Customer would like to use timeslots 1-3 on both of their E1's for data. And 4-27 for voice.
Within the E1 service between the two sites, timeslots 1-3 are to be used for data circuit 1, and timeslots 4-6 for data circuit 2.
The timeslots 7-27 are to be used for voice. (confused?)

Is this possible???

I've setup some tdm cross-connects (using tdm-groups) because the VWIC2 cards do not support more than 2 channel-groups.

I'm not even sure this is possible or even how to achieve it. I've tried the tdm cross-connects because of some information I found when researching drop and insert.

What about compressing voice from 2x E1's into 1? I don't think it's possible. The current setup appears to be 2 into 1, but when the E1 that goes overseas reaches capacity (30 channels) the next call will be fast busy.

Thanks
Dana


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