Why does my SIP-provider not accept my call ?
Posted by Elena Brambilla, Last modified by Daniel Lizaola on 29 November 2017 11:05 AM

 If SmartNode routes a call to a SIP-Proxy it sends in the SIP FROM-field the calling-party number. Either this calling-party number is provided from the connected telephone/PBX or it will be set as "anonymous" if not available.

This FROM-field is used by the proxy for authenticate purposes. This means the server challenges the SmartNode based on this number. SmartNode needs to have then a password configured in the SIP-gateway configuration. If the number in the FROM-field is different than the user-name in the gateway configuration the authentication fails and the proxy denies the call.

To avoid this you may need to set the FROM-field manually and with every call to the username as provided from the SIP-proxy operator. The command is to enter in the SIP-interface and is called:

address-translation outgoing-call from-header user-part fix (username) host-part call

NOTE: Please replace the (username) with the provided username from your provider.

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