3Com RELEASE 2 installation manual Testing outside lines for a dial tone

TEST THE OUTSIDE LINES You may want to test whether a dial tone is audible at the network interface connection. If so, you need either a basic rotary dial telephone, a Touch-Tone telephone with a modular cord, or a tool that tests for dial tones. Because a MERLIN Plus system voice terminal works only with a control unit, you cannot use a MERLIN Plus system voice terminal for this test.

1Bring the telephone or testing tool to the jacks for your outside lines (either at the network interface or at the jack field).

2Plug the telephone’s modular cord or the tool’s testing cord into each outside line jack and listen for a dial tone. See Figure 3.

Figure 3 Testing outside lines for a dial tone.

Step 1: Installing the Control Unit 5