Analog interface between voice gateway and pbx system, please suggest too

[nitass]

Hi

I’m a fresh in telephony and voip technology. I didn’t find information about design analog interface between voice gateway and pbx system such as fxo-to-fxo, fxo-to-fxs, fxs-to-fxs, fxo-to-e&m, fxs-to-e&m, or e&m-to-e&m. Could you please suggest any resource for me?

Ps. my networks have 1 HQ and 2 branch offices connect to the HQ.

Thanks,

Nitass

[icabrera]

Hello, you can see some configuration examples at:

http://www.cisco.com/en/US/products/hw/routers/ps221/products_configuration_guide_chapter09186a008007c995.html

Hope helps you.

[jaregalado]

Hello,

you can find lots of info about analog voice interfaces here:

http://www.cisco.com/en/US/tech/tk652/tk653/tk754/tech_protocol_home.html

I've found this particular document very useful when trying to understand how telephone signaling works. This applies to any telephone system where interfacing to analog phones or the PSTN is involved.

http://www.cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a00800a6210.shtml

Regards.

[venkekri]

Just to add. You can configure the above possible setup except FXo-fxo or FXS-FXS. If one end is FXS then the other end has to be a FXO and vice versa.

[nitass]

Thank you very much to all posts.

Nitass