6 Things You Need to Know about SIP Trunking

SIP trunks are more than just a replacement for your telephone lines. Whilst they may seem like the most obvious candidate when it comes to reliability and taking a step towards the cloud, there is so much more that you should know about SIP trunking before making your decision! Here are 6 key things you need to be aware of…

Many Ways to Receive Immediate ROI 

Your new ISDN lines are expensive and you’re paying more every month with no hope of saving. With SIP, your monthly rental charges will be less than half what you pay now for a considerably higher quality service that doesn’t require any installation or moving costs!

The best way to stay connected with your colleagues and customers is by adopting SIP trunking. With this feature, businesses can reduce the cost of long-distance calls as they connect over a higher-quality network that bypasses traditional phone lines altogether! In fact, be prepared for any disaster scenario because intelligent call routing will ensure that you’re always available to speak with clients or coworkers in need of assistance.


Despite the uptake of cloud technologies experiencing exponential growth, IT and Security Managers still adopt new technologies with a level of caution. One common misconception is that calls over SIP are not safe because they occur on the internet- but this isn’t true at all! By ensuring your connection follows security best practices such as encryption, you don’t need to worry about any safety problems associated with using public networks for conversations.

The SIP protocol is robust and can be used to keep your data secure. If you are using a VPN or another form of private connection, then the data transmitted between calls will remain confidential as well.


The flexibility of a SIP trunk is what makes it such an attractive solution. You can add more sessions to your setup as you grow, and easily scale down when business begins to slow or if there are bandwidth issues that need attention.

Enterprise voice service providers offer multiple solutions for any type of company including VoIP networks like the one offered by Spire Networks which allows businesses to take advantage of scalable services all while paying only for what they use each month with no long-term contracts!

Legacy Services

ISDN and PSTN services primarily carry voice traffic. But, make sure you don’t overlook other services like fax machines or alarms that are connected to your phone lines. First of all, conduct a physical audit around your sites to note down exactly what is connected to your phone lines. If it’s only the telephone system(s), go ahead! On the contrary, if one were to find any analogue service such as a franking machine will need to prepare for continuing these types of this service over SIP (Session Initiation Protocol).


A strong network backbone is a critical component to successful SIP calls. When bandwidth has been made available exclusively for this type of traffic, the quality should not dip at all when it comes to latency or packet loss. Jitter and dropped packets are symptoms that can happen with inadequate networking equipment if you’ve undergone an upgrade in your VoIP technology—but they don’t have to be permanent obstacles!

The perfect VoIP experience can be ruined by latency, jitter and packet loss. Latency causes repeated speech in voice over IP calls, while jitters result in inconsistent quality of audio transmission. Packet loss often leads to delayed speech – when packets are not transmitted fully the entire conversation won’t make it through on time! Ensuring you have enough bandwidth available is simple: follow our rule of 1MBps per 10 concurrent calls and you’ll know how much bandwidth is required for your network setup needs (or consult one of us if needed).


When thinking about moving to SIP, it’s important that your PBX is compatible with the technology. This interoperability can save you money and time in making a decision for migration from existing phone lines. However, before jumping into planning or migrating over all of your current equipment needs to be evaluated first as there may still need some investment made on initialising this new system.

The benefits of SIP to your business are worth the cost. We can get you started today with a complete guide on how to make your PBX ready for SIP, and we’re always here when you need us, simply contact us today!

Share this post