Free PC-to-PC Calling

• What are the system requirements for using Voice with Yahoo!Xtra Messenger?
• How do voice messaging and call history work?
• How do I use custom ringtones?
• How do I place a call?
• How do I run the Call Setup Assistant?
• What is Yahoo!Xtra Messenger Call?
• Why can't Yahoo!Xtra Messenger access my microphone?
• The sound device is currently in use by another audio application.
• I can't hear or be heard.
• How do I install the DSP Group TrueSpeech™ Audio CODEC?
• Why is there an echo?
• Why is their voice choppy?
• Why can't I connect to the voice servers?
• What kinds of network address translators (NATs) are supported to use the PC-to-PC voice feature?
• I am unable to use the PC-to-PC voice feature due to a connection problem. What might be causing this?
• What ports are used by Yahoo!Xtra Voice services?
• Why does my network connection speed matter when making PC-to-PC calls?
• What kinds of firewalls are supported to use the PC-to-PC voice feature?
• What quality of service (QoS) does the voice feature of Yahoo!Xtra Messenger offer?
• Does my voice call go through a server or via a peer-to-peer connection?
• Why does the call quality vary depending on the type of firewall or network address translator (NAT) connection I have?
• How do I configure my firewall to make Yahoo!Xtra Messenger PC-to-PC calls work?

Open Talk

• What is Open Talk and how do I use it?
• What is required to use Open Talk?
• Can more than one user talk to me at the same time through Open Talk?
• Who can see that I have enabled Open Talk?
• I have enabled Open Talk, but my friends can't connect to me.

Conferencing

• How do I start a conference?
• How do I invite more people to a conference?
• How do I start a voice conference?