Telecoms Traditional Troubleshooting - Multiple Handsets

OK.

If the problem you are experiencing is affecting multiple users there is likely to be a common cause such as equipment failure or a line fault.

We need to narrow the field of possibilities down. Please select the most accurate description of your situation from the choices below:

• All handsets appear to be working. I can dial internally but I cannot make or receive external calls.

• No handsets appear to be working and I obviously cannot make or take calls either internally or externally.

• Some handsets are working and can make/take some internal and external calls. Other handsets are not working.