AT&T SB67030 Administrator's Manual page 98

To set the Dial Plan: (Continued)
Figure 96. Dial Plan Settings, Part 3
System Configuration
Synapse Administrator's Guide
98
b. Select the Park Extension Prefix to be the initial
digit used for parked calls, as shown in Figure 95.
For example, if set to 8, the park extension range
would be from 800 to 899. The Park Extension
Prefix should not match the PSTN Trunk Prefix.
If the PSTN Trunk Prefix is set to none, the
SA must ensure that the Park Extension
Prefix does not conflict with the first digit
needed to dial long distance calls. For example,
if the Park Extension Prefix is 1, then a PSTN
call beginning "1-60" is not completed because
the system instead looks for a parked call at
extension 160.