Avaya 4621SW Guia Do Utilizador

The following procedure describes how to initiate a call manually.

Tip:

To call an outside (PSTN) line, dial 9 first. To call a SIP (VoIP) network, dial 8 
first. 

1. Use any of the four methods listed above (handset, Speaker button, Line/Feature button, 

or Headset button) to obtain a dial tone.

2. Press the keys on the dialpad to enter the telephone number or extension of the party that 

you want to call.

Note:

To dial a PSTN number, press 9 first. To dial a SIP (VoIP) network number, press 
8 first. You will not hear a dial tone after you press the prefix key. When you enter 
a number that places a call to the PSTN or a SIP network, pressing the # key on 
the dialpad speeds up the dialing process. 

3. To hang up, perform one of the following actions:

●

Return the handset to its cradle.

●

If you are using the speakerphone, press the Speaker (

) button.

●

If you are using a headset, press the Headset (

) button.

The speakerphone allows you to speak to someone without using the handset. To switch from 
the handset to the speakerphone when the handset is off hook, press the Speaker (

) button. 

Tip:

You can pre-dial with the handset on-hook—the entered number is dialed 
automatically when you press the Speaker (

) button.

1. Press the Speaker (

) button or press a Line/Feature ( ) button.

2. Press the keys on the dialpad to enter the telephone number or extension of the party that 

you want to call.