We currently have a Cisco CallManager Express implementataion with a 2811 router, 4 built-in FXS and 4 FXO ports, and (5) 7960 IP phones. We would like to use a standard cordless phone for manager only usage early in the morning.
We connected the phone to the first FXS port and are able to dial out and make calls properly as per the dial-peers that are already configured. We would like to configure this FXS port so this analog phone could function similar to an IP phone (answering incoming calls, possibly transfer and on-hold functions).
I've read the CCME admin guide and the guide on voice ports, but I'm having trouble with the solution. I understand that it needs to be configured as an ephone, but how do I configure the ephone to point to the FXS port? Or am I way off base?
So the IP phones can all have extension 150 and are allowed to answer that extension if ringing...but the FXS cannot have the extension assigned? Would the answer be to obtain an ATA-186 and use that instead of an FXS to provide an analog phone?
I'm not sure where everyone is going wth this but you CAN use the FXS ports on the 28xx router as an ephone. This is a very nice feature because you get all the ephone functionality on an analog phone such as CFNA, CFB, 3-party conf, pickup groups, transfer, night mode, MOH, etc.
You will need to run the latest 12.4(4)XC IOS and see the following URL:
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