User's Manual Part 1
Firmware Version 1.0.0.1 UCM6200 Series IP PBX User Manual Page 153 of 320
For VoIP trunk example, please refer to the document in the following link:
http://www.grandstream.com/sites/default/files/Resources/ucm_to_ucm_peer_guide.pdf
The VoIP trunk options are listed in the table below.
Table 49: Create New SIP Trunk
Type
Select the VoIP trunk type.
Peer SIP Trunk
Register SIP Trunk
Provider Name
Configure a unique label to identify this trunk when listed in outbound
rules, inbound rules and etc.
Host Name
Configure the IP address or URL for the VoIP provider’s server of the
trunk.
Keep Original CID
Keep the CID from the inbound call when dialing out. This setting will
override “Keep 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.
Keep Trunk CID
If enabled, the trunk CID will not be overridden by extension’s CID when
the extension has CID configured. The default setting is “No”.
NAT
Turn on this setting when the PBX is using public IP and communicating
with devices behind NAT. If there is one-way audio issue, usually it is
related to NAT configuration or SIP/RTP port support on the firewall.
Disable This Trunk
If checked, the trunk will be disabled.
Note:
If a current SIP trunk is disabled, UCM will send UNREGISTER message
(REGISTER message with expires=0) to the SIP provider.
TEL URI
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-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.
Caller ID
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 CallerID will be used if they exist:
The CallerID configured for the extension will be looked up first.