SIP Trunking: Flexible and cost effective voice service

Voice Management

Do you want to start using our SIP Trunk immediately? Install our Voice Management app to your CM account and configure your SIP Trunks.

Try for free

CM SIP Trunking: excellent quality and easy implementation

  1. Solid, geo-redundant voice platform

  2. Easily create and manage SIP Trunks in one interface

  3. No set-up or subscription fees. Calls charged per second

  4. Unlimited capacity

SIP Trunking

How does SIP Trunking work?

Every VoIP-ready telephony system can be connected directly to our network. You can configure the SIP Trunks in a few simple steps. Port your current numbers or request new phone numbers from CM. This way, you can host all your telephony under one roof. 

You can use our interface to quickly and easily set up your SIP Trunks. Determine the capacity and the settings for each account and you are ready to start calling. You get direct insight into the telephone usage of your organization with Voice Analytics. If you do need help with something, we are available 24 hours a day. 

SIP Trunking

Insights in telephone usage

All users of CM's SIP trunk receive free access to an extensive voice analytics dashboard. This dashboard provides a clear insight into the telephone usage of your organization.

Issues such as the number of calls, the total duration and costs of the calls and the average duration per telephone call can be shown per adjustable time frame. You can also download CDRs (Call Detail Records) with only one click of a button. Or connect easily with our sFTP server for a realtime CDR connection.

Voice Analytics

Your benefits with a SIP Trunk by

The advantages of CM's SIP Trunk

bar-chart Created with Sketch.

Voice Analytics

With our Voice Analytics, you immediately get insights in the number of calls, the called seconds and the costs incurred.

verification Created with Sketch.

Sharp call rates

With CM as SIP Trunk provider, you don't pay any setup or subscription fees. In addition, you only pay per called second.

zoom-in Created with Sketch.

Invoicing and insight

Request real-time CDRs (Call Detail Records) via email, via the free Voice Management app or your own sFTP server for exact insight into your telephone traffic.

phone Created with Sketch.

Voice API

Do you want more functionalities such as Text-To-Speech, audio messages or a phone menu? See what our Voice API can do for you.

Voice API

How others benefit from CM as a SIP Trunk provider

The quality of CM's SIP Trunk is excellent. The switch to CM's Voice platform was also easily and quickly implemented."

Sander Kole, Technology Director at

"Pluscloud recently joined What we noticed were the short and fast communication lines. Together with the efficient dashboard and the simplicity of the concept, offers us a SIP solution that is much more efficient and economical than the solutions of the competition."

Martijn Snels, Founder of Pluscloud

"Not only the price is important. CM is also specialist if it comes to clever routing of calls using only the best telecom providers. Next to a good price, the quality is of the routes is very high."

Kees-Jan Mars, Managing Director at GDCC

CM's SIP Trunking rates

Prices per minute, billing per second

Country Starting at
United Kingdom € 0,0040
Netherlands € 0,0075
Belgium € 0,0165
Germany € 0,0164
France € 0,0059

Who can benefit from calling via CM?

emoticon Created with Sketch.

Call centres

The SIP Trunk of CM is ideal for processing large volumes of phone traffic, for both inbound and outbound calls.

home Created with Sketch.


Connect your phone system with CM's SIP Trunk and make calls at the lowest cost. Our connection is of premium quality.

phone Created with Sketch.


Connect your telephone system with the powerful CM SIP Trunk and send all your inbound and outbound traffic via CM. Save up to 35% on the fixed and variable costs.

Start now with CM SIP Trunking

  1. edit Created with Sketch.
  2. emoticon Created with Sketch.

    Receive a tailor-made offer

  3. settings Created with Sketch.

    Set up your system & IP addresses

  4. phone Created with Sketch.

    Start calling and save costs

Interested in using the CM network?

Contact us, receive a sharp proposal within one working day and try our platform free of charge for 30 days.

Inbound telephony easily controlled

The ability to call your customers is important, but being able to receive calls is perhaps even more important. CM provides you with correct telephone numbers. Do you already have your numbers? We easily transfer them to our platform.

  1. We offer DDI numbers in 80+ countries

  2. From one number to thousands at the same time, we are salable

  3. Our prices are transparent and competitive

More about DDI numbers
ddi numbers

Voice Management

Try for free

Select Your Country

Selecting a country will show relevant information for that region and may change the language.

If you have any questions or suggestions, you can always contact us .
We’d love to hear from you!