Grandstream GXP-2000 Enterprise IP this is the ip of the phone 's new generation built on open network standards with application of the most modern technologies. The device supports an extended range of voice codecs: G.723.1 (5.3K/6.3K), G.729A/B, G.711 (a-law, u-law), G.726, G.728, G.722 (Model 102D) with the possibility of automatic selection of the most suitable for a particular channel.
For calls from your pc, you must download and install a program (the phone), with the help of which you will be able to make calls at very advantageous tariffs, even with the SUBSTITUTION OF NUMBERS!!!
Also you have possibility to make a call directly from your SIP phone, it is very easy and very simple. Now almost every second there is a Sip phone, because it costs only about$ 20 and provides a host of Free or VERY LOW- COST phone calls all over the world!
SIP telephony - from hatiffone
Want to play a friend or colleague at work, and can check his girl ). We render a full spectrum of SIP services, including SUBSTITUTION PHONE NUMBER !!! Changing phone number when making calls and sending sms messages.
The company hatiffone is the only company providing such services on the changing rooms, the rest - this is our providers. Each of them, in the control panel indicated hatiffone
Location calls the from 0.001$ around the world, free of connection fee. We have the cheapest rates - even Skype rest!!! An obvious difference from a similar - it is link quality, check the below- market and opportunity SUBSTITUTION ROOMS!!!
