to send DTMF signals to the other party. If such function is inactive, then extension call will become impossible. 5.1.7 Dial Hold If you have applied for dial hold, in the call conversation process, press “Options” to have the following function menus:
Pause: Pause the current call but with the line keeping connected.
End: End the current call conversation.
New Call: Enter the dial interface, dial another call.
Phonebook: Enter the directory of the phonebook.
SMS: Enter the directory of the SMS.
Record: While having call conversation, you can record the call.
Activate/Inactivate Handfree: activate/inactivate the speaker.
DTMF: You can set whether to send DTMF signals.
You
can
Note: Some menu items need the support of the local network or can occur in special cases, such as Conference and New Call. Consult the local 29