User's Manual
Firmware Version 1.0.0.32 UCM6102/6104/6108/6116 USER MANUAL Page 43 of 110
Technology
SIP
Check SIP if the users are using SIP or a SIP device.
IAX
Check IAX if the users are using IAX or a IAX device.
SIP Settings
NAT
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 configuration or Firewall's support of
SIP and RTP ports.
Call Reinvite
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.
DTMF Mode
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 codec PCMU and PCMA are required.
When "Auto" is selected, RFC2833 will be used if offered, otherwise
Inband will be used.
Insecure
Port: Allow matching peers by IP address without matching port
number.
Invite: Authentication of incoming INVITE messages is not required.
No: Normal IP-based matching and authenticated INVITES.
The default setting is Port.
Enable Keep-alive
If enabled, keep the NAT session open. The default setting is enabled.
Keep-alive Frequency
Configure the number of seconds for the host to be up for Keep-alive.
IAX Settings
Max Call Numbers
Limit the maximum amount of call numbers allowed for a single IP
address.
Require Call Token
If set to Yes, call token is required. If set to "Auto", it may lock out users
who depend on backward compatibility when peer authentication
credentials are shared between physical endpoints. The default setting
is Yes.
Other Settings
SRTP
Enable SRTP for the call.
FAX Detect
Enable to detect fax signal from the user/trunk during the call and send
the received fax to the Email address configured in this configuration
page. If no Email address can be found for the user, send the received