[cisco-voip] connecting adtran to cisco routers.

[anand]

Hi

I am using adtran atlas 550 as CO.I connected router's FXO port to ADTRAN's
FXS port  and ADTRAN's FXS port to another routers FXO port.I connected ip
phones to the routers.

When i call from one phone to another the call gets established but i cannot
see any ring on the other phone.When i connect analog phone directly to the
ADTRAN's FXS port the phone is ringing.but when i connect router which has
phone the phone is not ringing.

Can someone help me with this.
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