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New Member

dynamically allocate T1 channels to voice and data traffic

Hello all!

I am researching to see if this can be done on a Cisco 3620 router. I would

like to dynamically allocate the T1 channels to voice or data traffic

depends on the time of day. For example, during office hours, I may have

half of the channel for voice and half of the channels for data, but at

night, I may want to have 80% of channels for data and only 20% of channels

for voice traffic.

If it is not possible based on time of day, is there other ways to do it?

I know the Cisco 3620 router with the 'digital voice truck module' can

allocate T1 channels to voice or data (correct me if I am wrong), but is

there a way to do the allocation dynamically?

If possible, please suggest the IOS version / module required.

Thanks very much!


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New Member

Re: dynamically allocate T1 channels to voice and data traffic

I am pretty sure we do not support time of day dynamic allocation, but let me make sure I understand the question correctly. Because on a given T1 voice trunk, you can configure how many of the 24 timeslots are for voice (ds0-group) and how many for data (channel-group) and this has to be done statically. Changing this allocation can only happen by reconfiguring the router. So if you allocate 10 channels to voice by a ds0-group then only voice and fax will go through those, and if there are no voice/fax calls, the channels will be unused. Now, we do support modem-passthrough on some platforms so you can send modem calls through the voice channels and share the use of modem (data), voice and fax calls. Then it becomes an on-demand basis use of channels, and any of those services can be handled at any time (ofcourse you can override this by your dialplan and specifically decide which line is fax, modem and voice....).

Hope this helps.