User Guide

Using the WebUI 38 Back to Contents
VCS754 Administrator and Provisioning Manual
NAT Traversal
Mailbox ID Enter the URI for the mailbox ID. The phone uses this URI
for the MWI subscription. If left blank, the User ID is used
for the MWI subscription.
MWI subscription
expiration
Enter the MWI subscription expiry time (in seconds) for
account x.
Ignore unsolicited MWI When selected, unsolicited MWI notifications-notifications
in addition to, or instead of SUBSCRIBE and NOTIFY
methods-are ignored for account x. If the VCS754 receives
unsolicited MWI notifications, the Message Waiting LED
will not light to indicate new messages.
Disable this setting if:
 MWI service does not involve a subscription to a
voicemail server. That is, the server supports
unsolicited MWI notifications.
 you want the Message Waiting LED to indicate new
messages when the VCS754 receives unsolicited MWI
notifications.
Enable Stutter Dial Tone Enables or disables the stutter dial tone for that account
(indicating message(s) waiting) when the phone goes off
hook.
Setting Description
Enable STUN Enables or disables STUN (Simple Traversal of UDP through
NATs) for account x. The Enable STUN setting allows the
VCS754 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.
Setting Description