What is VoIP?

VoIP stands for Voice over Internet Protocol, a general term for a family of transmission technologies, used for delivery of voice communications over IP networks (such as the Internet or other packet-switched networks.)


What is SIP?

SIP stands for Session Initiation Protocol, a signalling protocol used for setting up and tearing down multimedia communication sessions for VoIP. TFone Numbers use SIP protocols to initiate phone calls. Other signalling protocols (ie. IAX) will be implemented at a later stage.


Can I send and receive fax documents over VoIP?

TFone does not limit or block fax traffic over our network.
However, if you wish to transmit fax signals over the VoIP network, you should use the G.711 ulaw (PCMU) codec (highest quality but uses the most bandwidth). TelecomAUS cannot guarantee the quality of fax documents transmitted using TFone however we will put our best effort for fax over IP.


Do you provide internet connections?

Sorry, we do not provide internet connections at this point. We prefer to let our customer to choose their own Internet Service Provider (ISP).


What VoIP / SIP audio codecs do you support?

TFone Service supports a number of codecs:

• G.711 ulaw (PCMU)
• G.711 alaw (PCMA)
• iLBC
• Speex
• CELT
• GSM
• G.722
• AAL2