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T-1 to E-1 not hearing callers

We are connecting to a site in Guatemala and trying to use network dialing over our routers. We have a T-1 on a 2821 router and a E-1 connection on a 2821 router in Guatemala. We can call the destination and hear them but they do not hear us. Is this a configuration issue at the Guatemala end? The remote router connects to Panasonic IP PBX's.

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Hall of Fame Super Gold

Re: T-1 to E-1 not hearing callers

Hi, Can you indicate if you are suing FW/ NAT, etc, are you trunking with SIP or H.323. I understand that you connected the the Panasonic with E1 and not IP.

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