VoIP Outbound Calls

[ricardorojas123]

I have a Cisco Router 1800 in the remote office, this router is connected to tha main office through a mpls, the remote router has connected 2 analog phone connected to fxs ports and in a public line is connected to fxo port. Actually, all external calls are switched to the FXO ports. In the main office there is a Cisco Call Manager and Voice Gateways, is possible for calls made on analog telephones (in the remote office) are switched by the central Voice Gateways.

[Adrian Saavedra · Accepted solution]

Hello,

Yes. There are multiple ways to do it.

Hope it helps, please rate if it does.

Kind regards,

- Adrian.

[ricardorojas123]

For example .... ¿?

[Adrian Saavedra]

Hi,

The fastest way is to configure VoIP dialpeers in your 1800 towards CM or even directly to the Voice Gateways. The other way is to configure your 1800 with SCCP so CM can control the analog phones connected to FXS as IP Phones. Then you can take advantage of centralized administration.

Kind regards,

- Adrian.

[ricardorojas123]

Thanks for your time and guidance.
I like the centralized option, I'll find how to enable SCCP on the router.

[Adrian Saavedra]

You're welcome

The configuration is pretty easy. In case you don't have yet, here you can find helpful guides:

SCCP Controlled Analog (FXS) Ports with Supplementary Features in Cisco IOS Gateways:

http://www.cisco.com/en/US/docs/ios/12_4t/12_4t2/ht1vg224.html#wpxref88405

Adding Cisco IOS SCCP Gateway in CallManager:

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/7_1_2/ccmcfg/b06gtway.html#wp1469462

Good luck.

- Adrian.