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VOIP gateway advice

I am looking for a voip gateway to install in a router to work with call manager 3.3. I do not want to use an 8 port E1 / cat6k module. I have both 3640 and 2600 series routers to work with. I have two small clusters in separate locations and need pstn access in each with voip between on a leased line and wish to implement toll bypass at a later stage, but main issue is minimise cost at startup. I have all other equiment except gateway for PSTN. Any suggestions anyone.

Community Member

Re: VOIP gateway advice

Basically, your module selection will be dependant on the type of pstn access line you have in each location; Analog or Digital and how many trunks you need.

Take a look at the latest Cisco CallManager Soulution Reference Design Guide and read through the chapter on Gateway Selection. This will help you decide what modules you need for your routers.


Tim Medley, CCDP, CCNP

IPT Consultant

Community Member

Re: VOIP gateway advice


We currently have a couple of DT24+ gateways and they work pretty well. However, Cisco does not manufacture this gateway anymore. I would recommend

NM-HDV-1T1 or NM-HDV-2T1 which can be placed in the 2600/3600/3700 routers.

Community Member

Re: VOIP gateway advice

Many thanks for your help John,

I have placed an order for the E1 version of the gateway.

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