To use the Internet telephony, there are many methods, of which two most common examples are mentioned:
1 – Use of ATA
The use of an ATA is the easiest and best way to take advantage of these services. In this method, the WAN and Phone outputs of the device are plugged into the Internet/ADSL modem and regular phone, respectively.
ATA, in fact, is an analog to digital converter, which converts the analog voice signals received from the phone into digital data, and sends them via the Internet to the destination.
The ATA device is now available to users in the Shatel Company, and users can receive it by contacting the Shatel’s Sales Department across the country.
2 – Use of phone software
Another method is to use Session Initiation Protocol (SIP) that is a protocol to transmit voice over IP. In this method, each user can use this service by receiving an SIP Account (i.e. a username, password, and server-related IP), and set the specifications on the corresponding software. Indeed, this information allows the user to dial through the software.
Many mobile phones allow SIP Setting so that it is not necessary to install any special software, otherwise other applications can be used for this purpose.
On average, a call that the user performs via VoIP allocates between 30 kbps to 70 kbps of ADSL service broadband to the user. As a result, a service of 128 kbps is sufficient to establish VoIP connection.
To use Shatel International Telephone Services, please contact Sales Agents of the Group via phone No. 23099. To contact Technical Support experts of the Shatel Group of Companies, please contact via phone No. 23089.