Second Dial Tone Timer; Applications - AT&T MERLIN LEGEND Release 3.1 System Planning Manual

Recording System Operating Conditions

Second Dial Tone Timer

In some instances, after dialing a star code the CO responds with a second dial
tone as a prompt to enter additional digits. Once a star code is accepted by the
communications system, the Second Dial Tone Timer is activated and set to the
programmed value. If dialing is attempted before the Second Dial Tone Timer
expires, the call is treated as though it had violated calling restrictions and is
not completed.
!
SECURITY ALERT:
If the Second Dial Tone Timer is set to 0 ms and a caller begins dialing
additional digits before the second dial tone, system restrictions may be
bypassed and a restricted call may be routed. Careful administration of
the Second Dial Tone Timer prevents the caller from bypassing call
restrictions in this manner.
Marked System Speed Dial entries (entries that do not display) are not affected
by the Second Dial Tone Timer setting. If the Central Office does not
immediately supply dial tone when a star code is entered and a Marked System
Speed Dial entry uses star codes, then the appropriate number of pauses (each
1.5 seconds) must be programmed in the entry following each star code.
Planning Form Instructions
Under the Second Dial Tone Timer heading, enter the desired value. Valid
entries are 0 – 5000 ms in increments of 200 ms. The system default is 0.

Applications

Several call-handling and management applications can be used with the
system, including voice mail and messaging; call accounting and reporting; and
call management, distribution, and reporting. This section contains instructions
for noting those applications that will be used with this system.
!
CAUTION:
General information about these applications is contained in the Feature
Reference . However, to ensure proper service, you must review the
documentation provided with the application itself.
Planning Form Instructions
On Form 1 (pages 3 and 4):
1. Check the name of each application that will be connected to the system.
2. For each application name you check, you may want to include pertinent
information in the Notes section. For example, you can note the version of
the application installed at the customer's site.
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Control Unit Configuration