Session Initiation Protocol (SIP) is the new standard for effective voice communications management. By eliminating the hassles and costs of maintaining separate networks and connection points, SIP trunking lets you centralize hardware in one location, eliminate the need for multiple PBXs and other equipment duplications and maintain presence in locations where you have no physical presence – all while reducing your telecom costs.
SIP trunking uses voice over IP (VoIP) to facilitate the connection of a private branch exchange (PBX) to the Internet. Essentially, the Internet replaces the conventional telephone trunk, allowing a business to communicate with fixed and mobile telephone subscribers worldwide. Simply put, it is a way for organizations to accomplish something that they already do…but for less money, with equal or better quality and with greater functionality. It is also a way for businesses that were too small and could not afford leased line services to achieve comparable benefits as bigger companies but for a far lower cost than ever before.
One of the most significant advantages of SIP trunking is its ability to combine data, voice and video in a single line, eliminating the need for separate physical media for each mode. The result is reduced overall cost and enhanced reliability for multimedia services.
With SIP trunking, subscribers can:
- Initiate and receive local calls
- Initiate and receive long-distance calls
- Make emergency calls (911)
- Access directory assistance
- Use fixed and mobile telephone sets
- Email and text
- Browse the Internet