Grandstream UCM6510 User Manual - Manual (Page 166)

Firmware Version 1.0.2.5 UCM6510 IP PBX User Manual Page 165 of 313
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.
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 option when the PBX is using public IP and communicating
with 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.
Disable This Trunk
If selected, the trunk will be disabled.
Note:
If a current SIP trunk is disabled, UCM6510 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.
Need Registration
Select whether the trunk needs to register on the external server or not
when "Register SIP Trunk" type is selected. The default setting is No.
Username
Enter the username to register to the trunk from the provider when
"Register SIP Trunk" type is selected.
Password
Enter the password to register to the trunk from the provider when
"Register SIP Trunk" is selected.
Auth ID Enter the Authentication ID for "Register SIP Trunk" type.
Auto Record
Enable automatic recording for the calls using this trunk (for SIP trunk
only). The default setting is disabled. The recording files can be accessed
under web GUI->CDR->Recording Files.
Advanced Settings
Codec Preference
Select audio and video codec for the VoIP trunk. The available codecs
are: PCMU, PCMA, GSM, AAL2-G.726-32, G.726, G.722, G.729, G.723,
ILBC, ADPCM, H.264, H.263, H.263p.
From Domain
Configure the actual domain name where the extension comes from. This
can be used to override the From Header.