Multicast Addresses - 3Com 3C10402B Administrator's Manual

Multicast Addresses

Table 12 System Timers
Field Purpose
TAPI Line The length of time before a call redirected from a TAPI route point
Redirect by an external application returns to its original destination. After
Timeout two failures, the call goes to the TAPI route point's call coverage
option.
TAPI Line Redirect allows an external TAPI application, typically a
call center application, to reroute incoming calls based on caller ID
information automatically.
For more information, see
Camp On The length of time that a call can camp on a busy extension before
Timeout the system returns the call to the extension that initiated the Camp
On feature.
The Camp On Timer can be set in increments of 10 seconds. The
default value for Camp On Timer is 180 seconds. The maximum
value that you can set the timer for is 600 seconds.
Automatic The length of time that a call can be designated for call back
Callback before the system cancels the call.
Timeout
The Callback Timer has default value of 12 hours. You can set the
timer to have a null value. If Automatic Callback is not returned in
the specified time, Automatic Callback is cancelled. A system
reboot also cancels the Automatic Callback on an extension.
The system uses IP multicast addressing to distribute information for
these system features, which are available on Layer 2 and Layer 3 IP
devices:
Mapped line appearances
■
Internal pages
■
External pages
■
Conference calls
■
The Music on Hold (MOH) feature is available on Layer 2 devices only. The
IP implementation uses Internet Group Management Protocol (IGMP)
to transmit and distribute the necessary data and audio.
If you configure your system to use IP On-the-Fly or Standard IP and your
switches use IGMP Snooping, you must have an IGMP Host on the
network. Typically, an IGMP Host is an IP Multicast Router or a switch that
has IGMP Query capability.
Multicast Addresses
TAPI Route Points.
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