SIP Trunking – What Is It?
Session Initiation Protocol connects all kinds of communications signals across the Internet and serves as a real time communication protocol for VoIP. No matter if it’s text, voice, video, or instant messaging, SIP works with PBX phone systems to combine voice trunking with high speed data access and ensure high quality performance and reliability. SIP also works with analog telephones and other business telephone systems too.
SIP Trunks recognize SIP signals and transmit these signals to other SIP machines. A Softswitch or SBC-Session Border Controller provides SIP Trunking and signal processing, protocol conversion, and many more functions.
SIP Trunking Offers Flexibility
SIP Trunking is totally scalable with flexible bandwidth adjustment capability, enabling you to only use – and pay for – as much or as little as you need. Your business can grow easily and affordably, whenever needed. The IP media stream sent from your company remains as an IP media stream and goes anywhere within the company or to another company by IP, thus reducing the need for hardware media gateways and providing significant savings to your business.
SIP Offers Improved Security and More Savings
Your business will save considerably with SIP, by avoiding the need for local PSTN gateways, expensive hardware, complicated network management tools and other unnecessary costs. In addition, SIP significantly lowers security risks, via voice encryption.
Advantages of SIP Trunking
SIP trunks yield considerable cost savings for small and medium sized businesses, because there is no longer any need for local PSTN gateways, PRIs (Primary Rate Interfaces) and expensive ISDN BRIs (Basic Rate Interfaces). Unlike bundled physical wires used in traditional telephony, SIP trunks replace fixed PSTN lines with PSTN connectivity via an SIP trunking service provider on the Internet.
SIP Trunks Systems – Added Flexibility and More Features
SIP trunks phone systems have greater flexibility and more features than traditional business phone systems. Small businesses can now enjoy all the business telephone capabilities and features of a multi-national company at a very affordable cost.
There are additional advantages of SIP trunks, such as taking your phone number with you around the world when traveling, enjoying local calling in cities even where you don’t have an office, integrating your phone system and customer management systems (CMS), advanced calling, voice mail options and much more.
A main advantage of SIP Trunks over PRIs is that SIP Trunks can be ordered in increments of 1, whereas PRIs have to be ordered in increments of 23 channels.