I have a big problem with a gateway (cisco) and ser. Phone to phone with sip it's ok and when i do phone to pstn the packets arrive to gateway but the line is busy and the message (when i made a capture with ethereal ) is -BAD REQUEST Invalid IP.
I don't know what i have to configure. I think the ser.cfg is well because the packets arrive to the gateway a it reposes.
My quenstions: - I have to register the gateway - What i have to do
Thanks - - Miquel