Table 52: Sip Peer Trunk Configuration Parameters - Grandstream Networks UCM6202 User Manual

Basic Settings
Configure a unique label to identify this trunk when listed in outbound rules,
Provider Name
inbound rules and etc.
Host Name Configure the IP address or URL for the VoIP provider's server of the trunk.
Configure the SIP transport protocol to be used in this trunk. The default setting is
"All - UDP Primary".
•
•
•
•
Transport
•
•
Keep the CID from the inbound call when dialing out, this setting will override "Keep
Keep Original CID Trunk CID" option. Please make sure that the peer PBX at the other side supports
to match user entry using "username" field from authentication line.
If enabled, the trunk CID will not be overridden by extension's CID when the
Keep Trunk CID
extension has CID configured. The default setting is "No".
Turn on this option when the PBX is using public IP and communicating with
NAT devices behind NAT. If there is one-way audio issue, usually it's related to NAT
configuration or SIP/RTP port configuration on the firewall.
If selected, the trunk will be disabled. Note:
Disable This Trunk If a current SIP trunk is disabled, UCM will send UNREGISTER message
(REGISTER message with expires=0) to the SIP provider.
If the trunk has an assigned PSTN telephone number, this field should be set to
"User=Phone". Then a "User=Phone" parameter will be attached to the Request-
TEL URI Line and TO header in the SIP request to indicate the E.164 number. If set to
"Enable", "Tel:" will be used instead of "SIP:" in the SIP request. The default setting
is disabled.
Configure the Caller ID. This is the number that the trunk will try to use when
making outbound calls. For some providers, it might not be possible to set the
CallerID with this option and this option will be ignored.
When making outgoing calls, the following rules are used to determine which
Caller ID
CallerID will be used if they exist:
•
•

Table 52: SIP Peer Trunk Configuration Parameters

UDP Only
TCP Only
TLS Only
All - UDP Primary: UDP is the primary transport protocol when all the other
SIP transport methods are available too.
All - TCP Primary: TCP is the primary transport protocol when all the other SIP
transport methods are available too.
All – TLS Primary: TLS is the primary transport protocol when all the other SIP
transport methods are available too.
The CallerID configured for the extension will be looked up first.
If no CallerID configured for the extension, the CallerID configured for the trunk
will be used.
UCM6200 Series User Manual
P a g e | 166