I'm trying to make calls from a CCUM 6.1 using a user account created in Voipbuster. I am not able to make the CCUM autheticate on the Voipbuster server. Does anyone know a way to do this or is what I'm doing impossible?
CUCM don't authenticate username/password provided by SIP proxy server. CUCM SIP Trunk does not send REGISTER request.
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