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UCM6510 IP PBX User Manual
Version 1.0.20.31
Configure the maximum duration of call-blocking.
Use NAT when the PBX is on a public IP communicating with devices
hidden behind NAT (e.g., broadband router). If there is one-way audio issue,
usually it is related to NAT configuration or Firewall’s support of SIP and
RTP ports. The default setting is enabled.
By default, the PBX will route the media steams from SIP endpoints through
itself. If enabled, the PBX will attempt to negotiate with the endpoints to
route the media stream directly. It is not always possible for the PBX to
negotiate endpoint-to-endpoint media routing. The default setting is “No”.
Select DTMF mode for the user to send DTMF. The default setting is
“RFC4733”. If “Info” is selected, SIP INFO message will be used. If “Inband”
is selected, 64-kbit codec PCMU and PCMA are required. When “Auto” is
selected, RFC4733 will be used if offered, otherwise “Inband” will be used.
If enabled, empty SDP packet will be sent to the SIP server periodically to
keep the NAT port open. The default setting is “Yes”.
Configure the number of seconds for the host to be up for Keep-alive. The
default setting is 60 seconds.
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.
The maximum allowed number of endpoint registrations to this extension.
Default value is 1.
Enable SRTP for the call. The default setting is “No”.
Select Fax mode for this user. The default setting is “None”.
None: Disable Fax.
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 GUICall FeaturesFax/T.38.
Note: If enabled, Fax Pass-through cannot be used.
This option controls how the extension can be used on devices within
diverse types of network.