Lucent Technologies 555-661-150 manual Intersystem Calling

MERLIN LEGEND Communications System Release 6.1	Issue 1
Network Reference 555-661-150	August 1998
2 Call-Handling Scenarios
Network Configuration Scenarios	Page 2-96
Intersystem Calling	2

Table 2–26, page 2-97 illustrates dialing and recipient screen displays for calling among extensions in Scenario 5. Note the following facts about intersystem calling in this scenario:

■The full 5-digit DEFINITY ECS or DEFINITY ProLogix Solutions extension numbers display at recipient extensions on the MERLIN LEGEND Communications Systems.

■The PassageWay Telephony Services application on System N displays UDP-routed calls as inside calls.

■PassageWay Telephony Services clients on System N cannot receive screen pop with the original caller information on a call that is transferred from System A. Instead, they receive information about the transfer originator. When such a transfer is made, the originator reviews the PRI- ANI information on his or her digital display telephone. Then the originator makes a transfer with consultation to a specific PassageWay Telephony Services client extension, telling the user at the extension what the calling party digits are. This allows the System N technician to bring up the customer information manually on his or her screen.

■MERLIN LEGEND Communications System users dial the full 5-digit DEFINITY ECS or DEFINITY ProLogix Solutions extension numbers, but the systems perform routing based on the first four digits.

In systems earlier than Release 6.0, Version 11, when a MERLIN LEGEND Communications System user calls an extension on System A, it is important to dial the fifth digit of the DEFINITY ECS or DEFINITY ProLogix Solutions extension number within two seconds of dialing the fourth digit, for correct routing.

For Release 6.0, Version 11 and later systems, programming the number of dialed digits as 5 makes this restriction unnecessary and speeds call setup time.