Grandstream Networks UCM6510 IP PBX User Manual page 145

TEL URI
Need Registration
Username
Password
Auth ID
Codec Preference
From Domain
From User
Outbound Proxy Support
Outbound Proxy
Auto Record
DID Mode
DTMF Mode
Firmware Version 1.0.1.12
If the end device/phone 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.
Configure whether to register on the external server.
Enter the username to register to the trunk from the provider.
Enter the password to register to the trunk from the provider.
This is the authentication ID for the UCM6510 to register to the trunk if
required by the provider. If not specified, the CallerID name will be used for
authentication.
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 and H.263p. In the selected codec list, users can
click on UP or DOWN arrow to adjust the order for the codec priority.
Configure the actual domain name where the extension comes from. This
can be used to override the From Header.
For example, "trunk.UCM6510.provider.com" is the From Domain in From
Header: sip:1234567@trunk.UCM6510.provider.com.
Configure the actual user name of the extension. This can be used to
override the From Header. There are cases where there is a single ID for
registration (single trunk) with multiple DIDs.
For example, "1234567" is
sip:1234567@trunk.UCM6510.provider.com.
Select to enable outbound proxy in this trunk. The default setting is "No".
When outbound proxy support is enabled, enter the IP address or URL of
the outbound proxy.
Enable automatic recording for the calls using this trunk. The default
setting is disabled. The recording files can be accessed under web
GUI->CDR->Recording Files.
Configure where to get the destination ID of an incoming SIP call, from SIP
Request-line or To-header. The default is set to "Request-line".
Configure the mode for sending DTMF.

Default: Set the value as global settings

Info: Use SIP INFO messages

Inband: Use inband audio (requires 64Kbit codec – alaw, ulaw)
UCM6510 IP PBX User Manual
the From User in From Header:
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