Grandstream Networks UCM6108 User Manual page 56

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Call Forward No Answer
Call Forward Busy
Ring Timeout
Technology
SIP
IAX
Analog Station
SIP Settings
NAT
Can Reinvite
DTMF Mode
Firmware Version 1.0.2.21
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default setting is deactivated.
Configure the Call Forward No Answer target number. If not configured,
the Call Forward No Answer feature is deactivated. The default setting is
deactivated.
Configure the Call Forward Busy target number. If not configured, the
Call Forward Busy feature is deactivated. The default setting is
deactivated.
Configure the number of seconds to ring the user before the call is
forwarded to voicemail (voicemail is enabled) or hang up (voicemail is
disabled). If not specified, the default ring timeout is 60 seconds on the
UCM6100, which can be configured in the global ring timeout setting
under web GUI->Internal Options->IVR Prompt: General Preference.
The valid range is between 5 seconds and 600 seconds.
Note:
If the end point also has a ring timeout configured, the actual ring
timeout used is the shortest time set by either device.
Select "SIP" if the user is using SIP or a SIP device. The default setting
is enabled.
Select "IAX" if the user is using IAX or a IAX device. The default setting
is disabled.
Select the FXS port if the user is attached on the analog port of the
UCM6100. The default setting is "None".
Use NAT when the UCM6100 is on a public IP communicating with
devices hidden behind NAT (e.g., broadband router). If there is one-way
audio issue, usually it's related to NAT configuration or Firewall's support
of SIP and RTP ports. The default setting is enabled.
By default, the UCM6100 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 UCM6100 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
"RFC2833". If "Info" is selected, SIP INFO message will be used. If
"Inband" is selected, 64-kbit PCMU and PCMA are required. When
"Auto" is selected, RFC2833 will be used if offered, otherwise "Inband"
UCM6100 Series IP PBX User Manual Page 55 of 159