How to Block (Open and Close) Extension Telephone Access in PABX Telephone

Telephone System

In your PABX Telephone System there is an extension telephone such as 101,102,103. You can set each extension telephone whether it has free access to call or you can block the extension telephone access.

Follow the step below for How to Block (Open and Close) Extension Telephone Access in PABX Telephone:
1. Press Program * #
2. Input the Telephone Password
3. Press 601
4. Click SP-Phone 2x and find the extension ex: 101,102,103..
5. Choose the option below
- 4 -> Close
- 3 -> Local Telephone
- 2 -> {Empty }
- 1 -> Free
6. Press Auto Store
7. Press Program to normal phone mode


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