Specifications
VSP600/VSP601 Administrator and Provisioning Manual
21 WebUI: System
NAT Traversal
Setting Description
Enable STUN Enables or disables STUN (Simple Traversal of UDP through
NATs) for account x. The Enable STUN setting allows the
base station to identify its publicly addressable information
behind a NAT via communicating with a STUN server.
Server address Enter the STUN server IP address or domain name.
Server port Enter the STUN server port.
Enable UDP Keep-Alive Enables or disables UDP keep-alives. Keep-alive packets are
used to maintain connections established through NAT.
Keep-alive interval (secs) Enter the interval (in seconds) for sending UDP keep-alives.
Music On Hold Settings
Setting Description
Enable Local MoH Enables or disables a hold-reminder tone that the user
hears when a far-end caller puts the call on hold.
Session Timer
Setting Description
Enable Session Timer Enables or disables the SIP session timer. The session timer
allows a periodic refreshing of a SIP session using the RE-
INVITE message.
Minimum value (secs) Sets the session timer minimum value (in seconds) for
account x.
Maximum value (secs) Sets the session timer maximum value (in seconds) for
account x.