Deaf Call allows a deaf person call any other phone and to select audio phrases which are played into the call in real-time.
Audio is played each time the caller presses a phone key. Each phone key can have a different personal phrase.
The phrases called "VoiceTexts" can be personalised in several ways. Over the web, by SMS and if your mobile supports it, WAP.
Using any of these methods, VoiceText phrases can be changed in real-time, while a call is in progress.

How to make a Deaf Call
You can make Manual or Automatic Deaf Calls.
Manual calling is useful if you want to make a quick voice call.
Automatic calls are recommended for high priority or emergency calls.

Manual Calling . (click here for Automatic voice calls)
During a VoiceText call there is no requirement to hear or speak.
Just like any normal phone call, the person on the other end of the call will be able hear you, and any background noise.

How to make a manual call.
You can only make calls if your mobile is registered.
To register instantly Text the word VOICE to 57802 (more)

Step 1: Dial the access number.
The access number for all Voicetexts calls is

1530444114
You'll need to switch on your Caller ID. (more)

When you dial this number the automated system will answer promptly (Unregistered mobiles will you'll be disconnected immediately)
You'll see the indication on your mobile screen that you are connected. See Demo on the left.
This indication varies slightly depending on your mobile, but all mobiles show when a call is connected.