Nokia 6555 0029488 Benutzerhandbuch

You can select multiple PTT contacts from the contact list. The recipients receive 
an incoming call and need to accept the call in order to participate. If supported 
by your network operator, you also may select contacts with a phone number but 
without PTT number. For details, contact your network operator. 

1. Select Menu > Push to talk > Contacts list, and mark the desired contacts. 

2. Press and hold the PTT key to start the call. The participating contacts are 

shown on the display, as soon as they join the call. 

3. Press and hold the PTT key to talk. Release the PTT key to hear the response.

4. Press the end key to terminate the call.

A short tone notifies you of an incoming PTT call. Information, such as channel, 
phone number, or nickname (network service) of the caller are displayed.

You can either accept or reject an incoming one-to-one call if you have set the 
phone to first notify you of the one-to-one calls.

When you press and hold the PTT key while the caller is talking, you hear a 
queuing tone, and Queuing is displayed. Press and hold the PTT key, and wait for 
the other person to finish; then you can talk immediately.

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If you make a one-to-one call and do not get a response, you can send a request 
for the person to call you back.

You can send a callback request in the following ways:

To send a callback request from the contacts list in the Push to talk menu, select 
Contacts list. Scroll to a contact, and select Options > Send PTT callback.

To send a callback request from Contacts, search for the desired contact, and 
select Details. Scroll to the PTT address, and select Options > Send PTT callback.

To send a callback request from the channel list in the PTT menu, select Channel 
list, and scroll to the desired channel. Select Members, scroll to the desired 
contact, and select Options > Send PTT callback.