What is SIP trunking?

SIP, or Session Initiation Protocol, is the name of an open multimedia protocol. In other words, a set of rules which determine how data packets containing your voice are carried via which network. This is standard in VoIP telephony and it ensures that you can send voice and text messages smoothly, participate in video conferencing and can see at any time which of your co-workers are available. And you can simply keep on using your existing switchboard.

With telecom devices that are compatible with SIP, you can watch your HD videos and listen to sound in high quality.

What is the purpose of SIP trunking?


SIP trunking forms an IP connection between your company’s switchboard and an SIP operator. That way, you can use the broadband network for incoming and/or outgoing calls.

What are the advantages of SIP?


Economical and flexible

Thanks to SIP trunking, you can channel your incoming and outgoing calls via an xDSL line, but without the costs of a classic subscription. In short, you’ll reduce your telecom budget because you benefit from the SIP operators’ attractive rates for domestic and international calls. Calls between different sites of the same company are actually free. Thanks to SIP’s flexibility, you only pay for what you use.

Another feature of interest is that you can simply keep your existing infrastructure.

Secure and high-quality

Our SBC infrastructure and fraud detection system ensure that all Dstny telephone services can run securely. The Quality of Service or QoS also ensures optimum management of your bandwidth: it gives priority to voice packets before data packets, as a result of which all your communication is of high quality.

Easy to expand

A SIP trunking system is scalable. You have a higher or lower number of employees with more or less communication needs? You can add or remove voice channels whenever you want.

Adapted to your needs

SIP operators offer flexible, modular formulas tailored to your communication needs. You can simply keep all your existing numbers.

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