Grandstream UCM6510 User Manual - Manual (Page 120)

Firmware Version 1.0.2.5 UCM6510 IP PBX User Manual Page 119 of 313
package by selecting "Check Prompt List" under web UI->PBX->Internal
Options->Language.
Music On Hold
Select which Music On Hold class to suggest to the extension when
putting the active on hold.
Table 36: IAX Extension Configuration Parameters - Media
SIP Settings
Max Number of Calls
Configure the maximum number of calls allowed for each remote IP
address.
Require Call Token
Configure to enable/disable requiring call token. If set to "Auto", it might
lock out users who depend on backward compatibility when peer
authentication credentials are shared between physical endpoints. The
default setting is "Yes".
SRTP Enable SRTP for the call. The default setting is disabled.
Fax Mode
Select Fax Mode. The default setting is “None”.
• None: Disable Fax. This is the default setting.
• Fax Detect: Fax signal from the user/trunk during the call can be
detected and the received Fax will be sent to the Email address
configured for this extension. If no Email address can be found for the
user, the Fax will be sent to the default Email address configured in
Fax setting page under web UI->PBX->Internal Options->Fax/T.38.
Strategy
This option controls how the extension can be used on devices within
different types of network.
 Allow All
Device in any network can register this extension.
 Local Subnet Only
Only the user in specific subnet can register this extension. Up to
three subnet addresses can be specified.
 A Specific IP Address
Only the device on the specific IP address can register this extension.
The default setting is "Allow All".
Codec Preference
Select audio and video codec for the extension. 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.
Table 37: IAX Extension Configuration Parameters - Features
Call Transfer
Call Forward Unconditional Configure the Call Forward Unconditional target number. If not