What is SIP Trunking?
SIP Trunking is a form of telephony that connects your premises directly to the Public Telephone Network (PSTN) via Broadband/IP.
Voice-over-IP (VoIP) telephones are rapidly becoming the most prevalent way for businesses to manage voice communications. SIP uses virtual phone lines rather than physical lines like ISDN.
So… why SIP?
1) SIP Can Save You!
Depending on your current set up, your savings with SIP may range between 10 – 40%. This can be on both traffic costs and access costs. With SIP, you have the opportunity to simply add a phone line by purchasing an additional handset saving you on costly hardware investments.
2) SIP Improves Your Security
Whilst no communication is ever completely secure from those adequately driven individuals, SIP Trunking provides you with a robust disaster recovery plan (DRP). Therefore, making it nearly impossible for ‘casual eavesdropping’ by primitive thieves.
3) SIP Makes Rerouting Calls Easier
SIP Trunking allows you to route calls to any available line at another premises if your current premises has no open lines available. With SIP, you needn’t worry about additional costs for call-forwarding or geographical location implications. Easy!
4) SIP is Video- Ready
Video conferencing has never been more essential than now. With SIP Trunking, the video connection can be carried over the same network that conducts your other phone traffic.
5) SIP Provides you with Flexibility
A major advantage to SIP is that it can readily adapt to your company’s requirements as well as making expansion easier. For instance, if you move premises, you can easily keep your existing numbers. SIP also allows you to vary your outbound numbers, meaning your calls can appear local even though they are being made at a premises elsewhere.
6) Portability with SIP
At this time, many businesses have employees working from home using mobile devices. With this in mind, SIP is the perfect solution for your communication needs. For example, with SIP your company can connect with its employees’ mobile devices via convenient and flexible VoIP apps that can be installed securely.
7) No More Physical Framework
SIP Trunking ends the challenge of expanding your company’s infrastructure. With SIP you can simply add phone lines by connecting handsets to your data connection, so there are no more lengthy waiting times for new lines to be installed and no more additional expenses buying company-provided mobile devices.
8) ISDN Switch Off!
If you haven’t already heard, as of September 2025 BT will be switching off ISDN. But where does that leave your business? Well, by 2025 you will have to be on a hosted network, meaning another fantastic reason why SIP is your best option. Therefore, if your current ISDN phone contract is coming to an end, now is the right time to start exploring your options of switching to VoIP and SIP Trunking.
SIP Trunking enables utmost connectivity for your business and it offers a wide range of flexibility. Above all, SIP provides your company with significant potential savings. To fully reap the positive benefits of SIP Trunking it is important that you understand your companies communicating needs…