Making calls at local rates or for free is many business leaders’ dream. The SIP Internet telephony provides inexpensive communication within the network for two or more subscribers, as well as the connection of a direct city number of the country to which you can call.
This is one of the modern VoIP solutions, which will not leave many entrepreneurs indifferent. This type of connection allows you to communicate with subscribers not only through a computer or laptop but also via smartphones, landlines and SIP phones. A prerequisite is an access to the Internet.
Nowadays, users can choose one or more methods of such connections to save their budget. To do this, you should connect a SIP program, connect a landline phone through a SIP adapter, and install SIP phones. This Internet protocol makes it possible to transfer the phone number to the gateway, while the number is identified as local even if the call is made from another city or country.
In addition, the organization of free VoIP telephony is quite feasible using X-Pro, 3CX Phone, X-Lite, Communi Gate Pro, etc. X-Pro is used for multi-channel office communication, which is perfectly customizable for any requests.
Another program for the PBX is 3CX. Using 3CXPhone-for-Windows-v12-5-173x3003CX VOIP, you can call from your computer or laptop. The functional and advanced system is easy to use, easy to install, works with SIP trunks, supports number limit and is not charged for connection time. Therefore, there is no compulsory payment. At the same time, SIP IP telephony almost always provides additional connection of special telephones, supported by 3CX Phone System. Cisco SPA112, a 2-port adapter, is also applied, and Cisco SPA 8000, an 8-port adapter, for a multi-channel office.
To make the SIP-system cheaper, terminators connect softphones, DECT, Wi-Fi-routers, switches, gateways with FXO, including a mobile phone. They also connect a landline SIP phone, with an additional video phone and softphone. SIP-phones dial internal numbers, while landlines and GSM VoIP-gateways are connected to external ones. The SIP IP-telephony gives the opportunity to organize a full-fledged corporate office by assigning a number to several devices. In addition, landline and mobile numbers are combined into one network, which means that tariffs will be minimal.