Instruction manual

Direct Private Network Access Page 1317 of 3156
Features and Services
Feature operation
Operational Sequence of a DISA Call
Step User Action Result
1. Dials DISA DN. If DISA Security Access Code is required, special dial tone
is given, and the caller continues to Step 2. Otherwise the
caller skips to Step 3.
2. Enters the Security
Access Code.
The dial tone is removed as soon as the first digit is dialed.
If the security access code entered is valid, the caller
continues to Step 3. Otherwise, the existing treatment for
invalid Security Access code is given when the interdigit
timer expires.
3. <no user action> If Authcode is required, normal dial tone is given, and the
caller continues to Step 4. Otherwise, the caller skips to
Step 5.
4. Enters an Authcode. The dial tone is removed as soon as the first digit is dialed.
If the Authcode entered is valid, the caller continues to Step
5. Otherwise, the existing invalid Authcode treatment is
given when the interdigit timers times out.
5. <no user action> If DISA Digit Insertion is not configured, the caller
immediately continues to Step 6. Otherwise, the digits
defined for DISA Digit Insertion are automatically inserted
into the call register before the caller continues to Step 6.
6. <no user action> If DISA RAN is configured, a RAN greeting is provided, and
the caller continues to Step 7. Otherwise, the caller skips to
Step 8.
7. a) The caller listens to
the RAN greeting; or
b) begins dialing before
the RAN is finished.
a) If DISA Digit Insertion is not defined, or DISA Digit
Insertion specifies to give dial tone to prompt the caller to
enter more digits, the caller continues to Step 8. Otherwise,
the inserted digits are immediately processed for call
completion.
b) The RAN greeting is stopped as soon as the first digit is
dialed. The dialed digits are appended into the call register
(i.e., if DISA Digit Insertion is defined, the dialed digits are
stored after the inserted digits), and the call is processed for
call completion.