1. Press the AT&T key to answer call waiting.
   
2. While on the line, press the Left Soft key.
   
3. Scroll to Join, then press the AT&T key to begin a three-way call.
   
4. To place a call on hold, select the desired call, then press the AT&T key.
   
5. Select hold, then press the AT&T key.
   
6. To split the call, select Split, then press the AT&T key.
   
7. Select the desired call, then press the AT&T key.