Dial Tones

Standard phones have two different dial tones:

Outside dial tone is generated by your local telephone company to indicate that you are connected with an outside line.

Intercom dial tone is generated by the system to indicate that you are connected with an inside line. You hear this dial tone when you are making an inside, or intercom, call.

To hear the difference between the two dial tones, lift the handset. The dial tone you hear (assuming the phone is set to select intercom first, as recommended in this guide) is an intercom dial tone. To hear an outside dial tone, press [ 9 ].

Using the Switchhook

Some of the call handling instructions in Chapter 5 direct you to “rapidly press and release the switchhook.” Pressing the switchhook for 1/4 to 1 second sends a signal over the line called a switchhook flash. However, do not press the switchhook too quickly. If you press the switchhook and nothing happens, try again and press it a little longer.

NOTE:

If your feature phone has a button labeled “Recall” or “Flash,” use the button instead of pressing the switchhook. If you use the system with PBX or Centrex lines, your PBX or Centrex documentation may tell you to press the switchhook to access features. Use the Recall feature instead (See “Recall” in Chapter 5).

Limitations

Each standard device requires one touchtone receiver to be available in order to dial a call (intercom or outside). Each 206 module has one touchtone receiver; each 400 module has two touchtone receivers. The combination of modules in your system determines the number of standard devices that can dial simultaneously. For example, if you have two 206 modules and two 400 modules, six standard devices can dial out at the same time. If seven standard devices try to dial out simultaneously, the seventh device will not get dial tone until one of the other six finishes dialing.

Also, because standard phones do not have system line or pool buttons, feature buttons, or dedicated function buttons, basic call handling procedures are sometimes different from those for system phones. In addition, the following actions cannot be performed at a standard phone:

You cannot enter programming mode.

Unless Call Waiting (#316) is assigned to specific standard phone extensions, there is no indication of a second call and an inside caller will hear a busy tone if a standard phone is in use. If Call Waiting is assigned, the user hears a call waiting tone (two beeps) when a second call comes in to the extension. (The call waiting tone is not repeated.) The user can use the switchhook to put the first call on hold and speak to the party on the second call and to switch back and forth between the two parties.

3-10Learning About Telephones

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Lucent Technologies 4.1 manual Using the Switchhook, Limitations