Grandstream Networks UCM6100 Series User Manual page 157

Skip Voicemail
When user dials voicemail code, the password verification IVR is skipped. If enabled,
Password
this would allow one-button voicemail access. By default, this option is disabled.
Verification
Select which Music On Hold class to suggest to extensions when putting them on
Music On Hold
hold.
If enabled, the batch added extensions will be added to LDAP Phonebook PBX list; if
Enable LDAP disabled, the batch added extensions will be skipped when creating LDAP
Phonebook.
Enable WebRTC
If enabled, extensions will be able to login to user portal and use Web RTC features.
Support
Call Duration Limit Configure the maximum duration of call-blocking.
SIP Settings
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's related to
NAT
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
Can Direct 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 "RFC2833". If
"Info" is selected, SIP INFO message will be used. If "Inband" is selected, 64-kbit
DTMF Mode
codec PCMU and PCMA are required. When "Auto" is selected, RFC2833 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
Enable Keep-alive
NAT port open. The default setting is "Yes".
Configure the number of seconds for the host to be up for Keep-alive. The default
Keep-alive
Frequency
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
TEL URI 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.
UCM6100 Series User Manual
Version 1.0.18.13
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