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Reply To: Answer supervision

Andy Linkens

I am trying to configure a Cisco AS5300 with SIP. The T1 is connected to an Adtran TSU100 channel bank with a phone connected to the first port and CAS is enabled. When I call a Cisco SIP phone I am only able to get a one-directional call. The AS5300 is not sending any voice packets.

I am using E&M on the AS5300 and Tandem-LS on the Adtran. All other configurations on the Adtran refuse to give dial-tone.

Has anybody experienced similar problems with T1 and CAS? If so how did you solve this problem?