Settings
What are the system requirements to use the premium Yahoo! Voice services? Can I use Yahoo! Voice services from behind a firewall? How can I change the sound volume? Can I use Yahoo! Voice services on a different PC, such as at an Internet café? How can I make sure that I can use the service before signing up? How can I change my Caller ID? What are the keyboard shortcuts I can use with Yahoo! Messenger with Voice?
Calling and Dialing Instructions
How do I make international calls in Yahoo! Messenger with Voice? What Caller ID is exposed when I make calls from Yahoo! Voice services? Can I call mobile telephone numbers? How do I make domestic calls in Yahoo! Messenger with Voice? Can I call 100 and other Directory Assistance or operator-assisted numbers? Can I dial letter numbers or vanity numbers?
Voice Issues
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 Yahoo! Voice services? I am unable to use the Yahoo! Voice services due to a connection problem. What might be causing this? What ports are used by Yahoo! Voice services? Does it matter if I have a slow or fast network connection when using Yahoo! Messenger's PC-to-PC voice service? What kinds of firewalls are supported to use Yahoo! Voice services? What quality of service (QoS) does Yahoo! Voice services offer? 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! Voice calls work? Why can't Yahoo! Messenger with Voice access my microphone? The sound device is currently in use by another audio application. I can't hear or be heard. Why is it important that I provide feedback about the call quality?
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