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- NAME: a meaningful name for this trunk
- HOST: IP address/hostname of the SIP server provided by ITSP
- PORT: this is 5061 by RFC
- TRANSPORT: TLS
- ENCRYPTION: check it enabled
- DIRECTMEDIA: check it enabled
- SENDRPID: check it enabled
The default values for Port, Allow and Disallow are usually work well, however feel free to change them to suite your needs better.
Optional fields are:
NAT: check this box only if you are not using directly the public IP address on the trunk interface.
We do also suggest the following values to be set:
- AUDIO TONES: ON EARLY MEDIA
- works fine with the Cisco Unity Call Manager. Avaya instead can deal with
- both ON EARLY MEDIA
- and ON ANSWERED CALL.
- DTMFMODE: choose your values considering the PBX on the other end of the Trunk. Usually we suggest to choose the value RFC2833
- DIRECTMEDIA: enabled (checked)
- SENDRPID: enabled (checked)
Other fields in the form depend by your network topology and by the features on the other end PBX.
2.1.1 Certificate Management
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