1.8 Toll Restriction (TRS) Features

1.5.2.7Host PBX Access Code (Access Code to the Telephone Company from a Host PBX)) or Carrier Exception code.

 

 

Access Code is stored in the PBX

Access Code is not

 

 

 

 

Access Code Type

 

Access Code is not

Access Code is dialled

stored in the PBX

 

 

 

 

dialled

 

 

 

 

 

 

 

 

 

Host PBX Access

TRS ignores the code

Number dialled is not an

TRS checks the entire

Code*1

and checks the

outside (CO) line call, so

number.

 

 

remaining digits.

TRS does not check the

 

 

 

 

number.

 

 

 

 

 

Carrier Exception

TRS ignores the code

TRS checks the entire

TRS checks the entire

Code*2

and checks the

number.

number.

 

 

remaining digits.

 

 

 

 

 

 

 

*1 Host PBX Access Code [403]

*2 Carrier Exception Code [300]

The inter-digit timer ( Inter-digit Time [208]) applies until the TRS check is completed. When the timer expires, the outgoing outside (CO) line call is disconnected while dialling, if enabled through system programming ( No Dial Disconnection [211]). For a single line telephone (SLT), an outgoing outside (CO) line call will be released from the DTMF (Dual Tone Multi-Frequency) receiver when the inter-digit timer expires.

TRS—Extension Lock Class

The COS of extensions locked by the Extension Lock or Remote Extension Lock feature ( 1.8.3 Extension Lock) can be assigned ( TRS—Extension Lock Class [312]) so that even a locked extension can make outside (CO) line calls. The higher COS number will take precedence. If, for example, COS 3 is assigned to an extension ( TRS-COS—Day/Night/Lunch [601-603]) and the COS of locked extensions is assigned as "4", when the extension is locked, the PBX allows the extension user to make outside (CO) line calls using COS 4.

The PBX can also be programmed to perform a TRS check for numbers that contain nondigits ( or #) ( TRS Check for * and # [125]). If TRS check is disabled, the PBX ignores any nondigits that are dialled when checking, which is useful in preventing some unauthorised calls.

Feature Guide References

1.6.1.5Speed Dialling—Personal/System 2.2.1 Class of Service (COS)

Feature Guide

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Panasonic kx-tea308 manual Code, Carrier Exception, TRS-Extension Lock Class

kx-tea308 specifications

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