I am in trouble with between CCM and FXS port. When I pick an analog phone up on FXS port, It always sounds busy-tone, so I can not dial everytimes. Strangely it is possible to call from ip phone to analog phone, but not from the analog phone to IP phone. Of course, I made sure that both of FXS port and phone were registered to CCM properly.
In this case, Do I need specific configuration for FXS on IOS gateway, based on 2600xx, or on CCM ?
can anybody else know about those kinds of situation or experienced people ?
My simple config is the following
-------- the following on 26xxXM IOS ---------
mgcp dtmf-relay voip codec all mode out-of-band
mgcp call-agent 192.168.10.10
mgcp sdp simple
dial-peer voice 101 pots
-------- the end --------------