Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Community Member

2821 ISR Upgrade for voice Gateway

Hi,

I have got a 2821 router with c2800nm-entservicesk9-mz.124-10.bin IOS.

I would like to upgrade it to manage voice services and connect it to a Call Manager cluster.

Do I just need to uprade the IOS version to a Voice one or do I have also to perform an hardware upgrade ?

3 REPLIES
Community Member

Re: 2821 ISR Upgrade for voice Gateway

the base hardware is fine.

what exactly do you want to do with it?

do you have any voice interfaces? DSPs?

Regards,
Steve
Please rate all helpful posts.
Community Member

Re: 2821 ISR Upgrade for voice Gateway

I want to use this router for voice.

I will have 2 E1 links, some FXS ports and first about 30 ip phones and later up to 500 ip phones.

I do not necessarely need SRST mode.

About DSP, how do I know what I need ?

Thanks for your help

Hall of Fame Super Gold

Re: 2821 ISR Upgrade for voice Gateway

Hi, For 2 E1 links and "some FXS ports", you need a PVDM2-64, then if you have more than 8 FXS ports , and addtional PVDM2-8 (minimum).

Hope this helps, please rate post if it does!

160
Views
4
Helpful
3
Replies
CreatePlease to create content