Installation guide

MyPBX U5XX Administrator's Guide
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·C odecs
Define the codec for this sip trunk and its priority
Note: codec can only display when edit it after creating the trunk.
·Transport
This will be the transport method used by the SIP Trunk. This method is given by
the SIP trunk provider. The options are UDP (default) or TCP or TLS.
·Qualify
Send check alive packets to the sip provider.
·DTMF mode
Set default mode for sending DTMF of this trunk. Default setting: rfc2833
·DOD
DOD (Direct Outward Dialing) means the caller ID displayed when dialing out,
before configure this, please make sure the provider supports this feature
·Associated Extension
The extension make call out via this Trunk will display the associated DOD.