T1 Switched 56 - Network - AT&T MERLIN LEGEND Release 3.1 System Planning Manual

Selecting Line/Trunk Options
T1 Switched 56 – Network
Use these instructions only if channels on a 100D module are to be
programmed as T1 Switched 56 channels. The instructions provided in the "T1
Service" section must be completed first.
T1 Switched 56 service provides high speed digital data services (up to 56-
kbps per channel) to the network as well as digital Tie trunk services. This
allows you to use your T1 facilities for basic digital data and file transfer needs
as well as more sophisticated personal and/or group video conferencing.
NOTES:
1. T1 Switched 56 service is supported only in Hybrid/PBX or Key mode.
2. Incoming data calls that attempt to route to busy data endpoints,
unassigned Dial Plan numbers, or ports that are not equipped with data
endpoints will not be connected.
This section contains instructions for configuring those T1 Switched 56 options
that apply to the T1 network interface. For information specific to the digital Tie
trunk planning, refer to the "Tie Trunks" section of this chapter.
The following options are covered in this section:
Incoming Routing
Line Appearance Routing (incoming services)
Dial Plan routing (incoming services; Hybrid/PBX mode only)
Signaling
After completing the procedure for filling in the module information on Form 3b,
pages 1 and 2, continue to the next section to fill in T1 Switched 56 options.
Planning Form Instructions
1. Select an Incoming Routing Method. This also assigns the Incoming
Signaling Type.
3–26
Lines/Trunks
Line Appearance Routing (default). When selected, incoming
data calls are typically terminated at a data extension/endpoint
that has a DFT or DPT appearance. The call may also terminate at
a data extension/endpoint in a DGC group. This option sets the
incoming signaling type to Auto.
Dial Plan Routing. When selected, incoming data calls are routed
by Dial Plan and may terminate to an SA button on any data
extension within the system. When routing by dial plan, the
incoming signaling type options are Wink Start and Delay Start.