DTMF on/off

DTMF (Dual Tone Modulation Frequency) tones can be sent during a telephone conversion. They are the keypad tones which the microphone gives out as you dial another number during a call. Your phone sends DTMF tones to communicate with answering machines, pagers, computerized telephone services, etc.

Main menu

By selecting this item you can access the Phone book and Messages menus during a call. For details on the Phone book an Messages menus, see page 63 and 75.

8The Copy record and Delete all options are not available in the Phone book menu which you access during a phone call.

Multiparty *

The multiparty or conference services allow you to have a simultaneous conversation with more than one caller. The multiparty menu has the following options:

8The maximum number of parties allowed during a multiparty (conference) call varies, depending on the network you choose.

Join all

This function allows you to set up a multiparty call. You can connect a call on hold to the currently active call to form a multiparty call.

/Once a multiparty call is set up, you can press to scroll through the numbers of the callers who make up a multiparty call.

Hold all calls

Puts a multiparty call on hold.

Using your phone

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BenQ M555C user manual Dtmf on/off, Main menu, Multiparty, Join all, Hold all calls