I started dealing with VOIP six years ago and started with cards. I used to make long-distance calls to Russia and Germany, the connection was worthless, the voice was being distorted and the background was like constant screeching noise. I was dissatisfied with that.
A lot of water has passed under the bridge since that time. Channels have become wider. I tried using Skype and enjoyed it but some Skype’s disadvantages, however, made me start thinking of an alternative.
Skype has a number of disadvantages: 1. No alternative clients are provided in case the protocol is closed; 2. A p2p-based protocol, which means you could have outside traffic: if you pay your provider on the consumed traffic basis, that outside traffic might turn out to be a considerable challenge for your finances; 3. Skype charges more than these of SIP providers for stationary and mobile phone calls; 4. All the Skype’s solutions as regards integration in the existing PBX have been lacking the necessary functions and haven’t been very easy-to-use, on the other hand, it’s not very practical to splash out on a separate mobile phone or computer for Skype’s sake alone.
SIP is a substitute to Skype. SIP means Session Initiation Protocol. It is not a voice transmission protocol but a way to control the information transmission sessions. Type of transmitted data is specified by a separate SDP (Session Description Protocol). It works in complex with SIP. Further information can be accessed, for example, at Wikipedia.
I haven’t thought over all the hardware solutions, but there is quite a lot of them. Software options allowing one to use SIP are just as numerous as the hardware ones.
All the contemporary IP-PBX systems are SIP-compatible. Using SIP such giants as Cisco create their own applications for big corporations and medium-sized firms.
I opted for my provided rather quickly. So I opted for UcallWeconn, as it provides its clients with just the service level a company is expected to come up with. UcallWeconn gives a common client an opportunity to use the services with the VISA advanced payment options, while business clients are bound to make a contract, sign the SLA and pay the services on a bank-basis.
Another thing in favor of this specific provider is that its services for home Internet users (i.e. for those who access the Internet via a NAT-like domestic router) are unexpectedly well organized.
You can buy cheap voip international calls , ask UcallWeconn for the cheapest rates to the needed country. You can also buy buy phone number online.
