Lucent Technologies MERLIN LEGEND Release 6.1 System Planning Manual page 133

MERLIN LEGENDCommunications System Release 6.1
System Planning 555-661-112
3 Lines/Trunks
Selecting Line/Trunk Options
Tie Trunks
Use these instructions only if the system has tie trunks, including tie trunks
emulated through a DS1 connection. Otherwise, skip to the next section, "DID
Trunks (Hybrid/PBX Mode Only)."
If configuring T1-Tie trunks, including those with Switched 56 digital data service,
complete the instructions in the "T1 Service" section first.
Tie trunks must be configured to match central office requirements or the
configuration of the system to which they tie. Review tie trunk operations and
make the following decisions about the way each tie trunk operates:
Direction
Signaling type
E & M Signaling
Dial mode
Dial tone
Answer supervision time
Disconnect time
Private network tandem trunks
This section contains instructions for each of these options.
Planning Form Instructions
1. Transfer the trunk identification from Form 2c, System Numbering:
Line/Trunk Jacks, to Form 3c, Incoming Trunks: Tie. Write the logical ID
and trunk number for each tie trunk connected to the system.
2. Under the Direction heading on Form 3c, check the direction for each tie
trunk next to its trunk number:
3. Under the Signaling Type (Intype/Outtype) heading, check the appropriate
column for either In or Out under the Wink, Delay, Immediate, or Automatic
columns for each tie trunk. For T1 facilities used for services (for example,
Megacom), consider the direction of the tie trunk and how trunk
assignments will be made. Then select from the following:
NOTE:
See the Network Reference for information on private networking.
If the tie trunk is two-way, check the Two Way (factory-setting)
column. Use this option for private networks.
If the trunk is one-way, check either the Outgoing column or the
Incoming column.
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Issue 1
August 1998
Page 3-39
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