When a precedence call to a telephone goes unanswered, the system attempts to connect the caller to a backup point as follows:

1. The call is diverted to the attendant console.

2. If the console is in Night Service or no console is administered, the call is diverted to a night telephone.

3. If no console or night telephone is administered, the call can be diverted to a user-defined telephone. This user-defined telephone is called the Remote Attendant Route String.

   The Attendant Diversion Timing controls how long that this type of call rings before the system routes the call to the Remote Attendant Route String. The Remote Attendant Route String is any valid telephone number on the network, and is usually a backup answering position for the remote attendant console. The Remote Attendant Route String does not raise the precedence level of the call.

4. If the Remote Attendant Route String is undefined and there is no attendant console or night telephone is administered, the call rings until the call is answered or abandoned.

These Precedence Calling diversion scenarios have variations for DSN calls, non-DSN calls, and local calls:

DSN Calls: If an outgoing precedence call over a DSN trunk is unanswered after an administrable period of time, the system routes the call to the:

• Attendant console or night telephone on the remote communication server

• Remote Attendant Route String

The administrable period of time is the Precedence Call Timeout on the remote communication server.

Non-DSN Calls: If an outgoing precedence call over a non-DSN trunk is not answered after an administrable period of time, the system routes the call to:

• A local attendant console or night telephone on the local communication server

• The Remote Attendant Route String

The administrable period of time is the Attendant Diversion Timing on the local communication server.

Local calls: If a local, intraswitch precedence call is unanswered after an administrable period of time, the system routes the call to:

• A local attendant console

• A night telephone

• The Remote Attendant Route String

The administrable period of time is the Precedence Call Timeout on the remote communication server.

When calls are redirected, a Call Purpose Indicator is displayed on the attendant console and on display telephone sets to indicate the precedence level of the call. The following indicators are provided:

• FO - Flash Override

• FL - Flash

• IM - Immediate

• PR - Priority

Routine precedence calls do not have a Call Purpose Indicator.

When callers attempt to use a precedence level that is higher than the authorized level, the caller hears the Unauthorized precedence level attempted recording. If an announcement is unassigned, the caller hears intercept tone.

The following table shows how precedence calls are processed depending on the precedence level and the administered maximum precedence level of the caller:

Maximum precedence level of the user	Precedence level of the call	Call treatment
Flash Override	Flash Override	Call completes normally
Flash Override	Flash	Call completes normally
Flash Override	Immediate	Call completes normally
Flash Override	Priority	Call completes normally
Flash Override	Routine	Call completes normally
Flash	Flash Override	Recorded announcement or intercept tone
Flash	Flash	Call completes normally
Flash	Immediate	Call completes normally
Flash	Priority	Call completes normally
Flash	Routine	Call completes normally
Immediate	Flash Override	Recorded announcement or intercept tone
Immediate	Flash	Recorded announcement or intercept tone
Immediate	Immediate	Call completes normally
Immediate	Priority	Call completes normally
Immediate	Routine	Call completes normally
Priority	Flash Override	Recorded announcement or intercept tone
Priority	Flash	Recorded announcement or intercept tone
Priority	Immediate	Recorded announcement or intercept tone
Priority	Priority	Call completes normally
Priority	Routine	Call completes normally
Routine	Flash Override	Recorded announcement or intercept tone
Routine	Flash	Recorded announcement or intercept tone
Routine	Immediate	Recorded announcement or intercept tone
Routine	Priority	Recorded announcement or intercept tone
Routine	Routine	Call completes normally