Lucent Technologies MERLIN LEGEND Release 7.0 System Planning Manual page 164

MERLIN LEGEND Communications System Release 7.0
System Planning 555-670-112
3 Lines/Trunks
Selecting Line/Trunk Options
4. Under the E&M Signal heading, select one of the following signaling types
to be used on the tie trunks:
Automatic incoming signaling is required if the central office
switch is a Lucent Technologies 5ESS or Northern Telecom DMS-
100 and incoming calls are programmed to route by Line
Appearance. Immediate Dial outgoing signaling should not be
used for digital emulated Tie trunks using T1 Switched 56 service
due to the lack of trunk integrity checking.
Dial-in E&M Tie trunks cannot be assigned to ring into a calling
group. Only Auto-in Tie trunks can be assigned to ring into a
calling group.
— One-way, Outgoing Tie Trunks. All outgoing calls are
placed using Automatic Route Selection, and tie trunks are
not assigned to personal line or Pool buttons on telephones.
Select wink signaling.
— One-way, Outgoing Tie Trunks. Tie trunks are assigned to
personal line or Pool buttons on telephones. Select
immediate signaling.
— One-way, Incoming Tie Trunks. Dialed Number
Identification Service (DNIS) is included. Select wink
signaling.
NOTE:
E&M Signaling does not apply to digital emulated Tie trunks using T1
Switched 56 service and should not be set during administration of
those trunks.
If the tie trunks are connected to the other system through the local
telephone company, check 1S (the factory setting).
If the tie trunks are connected directly to a system that uses type 1S
signaling and is located near this system, check 1C.
NOTE:
The 1C option assumes that the two systems are connected
together without any provisioned facility, and without any
signaling treatment equipment. When connecting a MERLIN
LEGEND switch to another MERLIN LEGEND switch, use
1C on one switch and 1S on the other.
If the tie trunks are connected directly to a system that uses type 5
signaling and is located near this system, check 5.
Issue 1
April 1999
3-42