Nortel Communication Server 1000M, Руководство по установке и настройке

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Page 108 of 120 Testing ISDN BRI functions
553-3001-218 Standard 2.00 September 2004
or until the maximum number of hunt steps is exhausted. Use LD 27 to define
the hunting DNs in the DSL. See “DSL configuration procedures” in
ISDN
Basic Rate Interface: Features (553-3001-380) .
Special hunting for ISDN BRI supports calls terminating at an ISDN BRI
terminal. This feature is activated when a call terminating at a DSL
encounters a busy condition and if hunting is enabled. Internal and external
hunt DNs can be specified when configuring the DSL.
A busy condition occurs:
• if the maximum number of calls on a DSL exceeds the specified limit of
calls on a DSL including active, calls held, calls waiting, and calls in
progression (as configured on LD 27), or
• if the total number of calls including active, calls held, calls waiting, and
calls in progress exceeds the number of channels configured to handle
the incoming call type.
If the call limit on a DSL is not exceeded, an incoming call is presented to the
DSL interface as a call waiting call. If Hunting is enabled, the call will be
hunted.
Use LD 27 to enable or disable Hunting when configuring the TSP for the
ISDN BRI terminal DN. See “TSP configuration procedures” in
ISDN Basic
Rate Interface: Features (553-3001-380) .
Procedure 33
Perform a hunting test
1 Set the FEAT parameter to HTA to enable hunting for two voice ISDN
BRI terminals. Use LD 27 to specify this parameter when configuring the
TSP. See “TSP configuration procedures” in
ISDN Basic Rate Interface:
Features (553-3001-380) .
2 Use LD 27 to specify the HUNT parameter DNs when configuring the
DSL. These hunt parameter DNs specify the members of a hunting chain.
See “DSL configuration procedures” in
ISDN Basic Rate Interface:
Features (553-3001-380) .
3 Place two calls, one for each voice ISDN BRI terminal, on a DSL to
create a DSL busy condition.