[cisco-voip] FXS/DSP limits on 2800 (2811)

[Cumhur Kizilari]

Hi Chris,

 Regarding this document  - *Page 25* -
http://www.cisco.com/web/KR/partners/technology/uc/pdf/Cisco_ISR_G2_for_Voice.pdf
 2811 handles maximum 28 FXS  also you can see other router
alternatives.
Maybe you can use SPA8000 to extend FXS capabilities.


Regards,
Cumhur

On Fri, Dec 21, 2012 at 5:24 PM, chris <tknchris at gmail.com> wrote:

> Hi,
>
> I am looking at possibility of using some spare 2811's as voice
> gateways to replace some aging 2600's and a vg224.
>
> >From reading the compability pages of the modules, I was trying to
> figure out if I could realistically run a 2811 with:
>
> 1x NM-HDA-4FXS w/ 2 EM-HDA-8FXS
> 4x VIC-4FXS/DID
>
> Can this platform drive 36 FXS? If not how many can I realistically
> do? Will it be capable of handling activity on all 36 simultaneously?
> I do not plan to run any other features/services other than connecting
> the analogue devices to SIP
>
> Any thoughts/advice/recommendations would be appreciated. If you think
> this is not realistic and have any suggestions that would be great. My
> main attraction to this platform is that I have a few on hand, they
> are fairly cheap secondhand and they can use some of the legacy vic
> cards which are also available at pretty low cost.
>
> Thanks
> chris
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