Most Frequently Asked Questions on VoIP Technology
What stands for VoIP?
Voice over IP is the process of transferring voice data via IP packets, which are thus traveling through the Web. VoIP, or Voice over Internet Protocol, Internet telephony, IP telephony, Voice over Broadband or Broadband telephony means transferring voice converses through the Internet or any IP-network.
What is the work principle for PC to PC calls?
When a client processes a PC to PC call to his interlocutor, the voice signals are at first transferred to digital data form on your personal computer. These digital data are transmitted via the Web to the interlocutor's computer Internet Protocol address. When the data are received, they're again transferred into voice at interlocutor's PC and he hears the client's voice, being able to communicate.
What are the conditions of VoIP usage?
A sound card on your computer, Internet connection, USB phone or a Headset, VoIP technology application like Viatalk.
Who are VSPs (VoIP Service Providers)? Voice over IP Service Providers are modern telecommunications which promote interrelation between PSTN and VoIP networks. They provide making and receiving calls between the two mentioned networks. See the reviews and compare the networks at www.az-voipproviders.com.
Why one VoIP services have a certain price, and others are free of charge?
VoIP technology is able to connect clients not only limited to VoIP service but with telephone services which are offline, as well, like customers who use conventional telephone line networks and cordless mobile phone networks. For such calls VoIP Service Providers are due to pay access payments to the cordless and conventional phone operators. These fees are also processed by VoIP service clients. Calls which involve PC-to-PC connection with regard to VoIP technology are commonly free (some VoIP service providers give an option of free calls to particular destinations).
What stands for VoIP Gateways?
Equipment, which is used to receive analog voice signals and transmit them into IP for transferring over WAN and LAN, is called VoIP gateways.
What VoIP codec is needed?
Currently existing VoIP codecs are the following: G.711, G.723, G.726, G.729, GSM, and iLBC.
What stands for SIP?
VoIP is connected with some extra abbreviations: IAX, H.323, and SIP. SIP is decoded as Session Initiation Protocol. SIP is quite a simple protocol, which possesses properties, common to SMTP and HTTP.