The Session Initiation Protocol (SIP) is a protocol used in signaling communications. This article will discuss the aspects of SIP termination. However, before that can be adequately explained, it is important to have a basic understanding of what SIP is and what exactly it involves.
SIP is commonly utilized to control communication sessions for multimedia such as video and voice calls that are placed over Internet Protocol (IP) networks. SIP is able to define messages that people send to one another which govern termination, establishment and various other important parts of a call. SIP is able to be used for terminating, modifying and creating sessions that consist of single or multiple media streams. SIP is able to be ulilized for multiparty or two-party sessions. Some of the other SIP applications that are available include online games, file transfer, instant messaging, video conferencing, fax over IP, presence information and streaming multimedia distribution.
SIP operates in collaboration with various other application layer protocols that are able to function with the session media once it has been identified. It is only involved in the part of a communication session that has signaling. When video or voice calls are set up or torn down, SIP is used. Existing calls can also be modified through the use of SIP. This modification can involve deleting or adding media streams, inviting more users or changing ports or addresses. SIP can be found in event notification and subscription applications as well as those that are used for instant messaging.
SIP enables the user to take advantage of regular phones to make calls using an Internet connection. When SIP is utilized, it is unnecessary to purchased phone systems or hardware that are new. Old phones can still be used to make calls. SIP saves businesses money and offers them many advantages.
SIP termination provides all of the standard features that people who use VoIP expect from the service such as voice mail, call waiting and caller ID. SIP trunking allows the user to have a high quality voice based IP system that is able to create calls that are crystal clear.
SIP termination is being embraced by corporations and VoIP providers because when compared to standard phone lines, it is dramatically more cost effective. The cost of maintenance and additional hardware has been almost completely removed. SIP termination allows access to various standard features, such as video conferencing. There is also no need to invest in a dedicated PSTN circuit. This enables a business to save a lot of money.
Tariffs for calls that are outgoing (SIP termination service) tend to vary greatly from one SIP provider to another. Calling rates are usually based on the mobile provider, city or country that the user is calling. Providers in the United States have service plans that are based on the amount of active lines. Various providers of SIP occasionally offer a pay per minute rate for simultaneously active channels in an unlimited amount.