Colt SIP Trunk With Teams
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SIP Trunk accessible worldwide
Advantages of the Colt SIP Trunk via Teams
By connecting the Colt SIP Trunk to your company’s Microsoft 365 solution, you have bundled all business processes in one place and can also be reached at any time via the Microsoft Cloud, regardless of whether you are at work, in your home office or on the move on your cell phone. The digital workplace enables your employees to access important data or take calls from anywhere.
Numerous advantages can be listed here:
- Low costs: from 2.30 € month / user
- Flexible scalability: new users can be added or removed with just a few clicks
- Customizable packages: Flat rates, minute tariffs or volume packages
- No hardware required
- available worldwide
- High security thanks to TLS and SRTP encryption
- Very good voice quality
- Prioritization via MS Peering possible
In addition, there are the advantages of classic SIP trunk solutions such as call center management, secretary function and conferencing.
>20%
Savings
99,99%
Availability
24/7
Support
Explained by experts:
Features of a Teams SIP trunk
All the functions of your existing telephone system continue to exist. UCC applications such as video conferencing, chat, recording, etc. are also available. If you want to continue using classic desk phones, this is also possible thanks to the simple plug & play deployment of preconfigured hardware.
Telephone system
- All the functions of your existing telephone system and even more
- Forwarding, call control, group call, BLF function and voice dialing menu
- Voicemail, call lists, contact management, fax and much more
- Simply add new colleagues and connect them automatically
- All-in-one web portal for intuitive administration
Messenger
- Encrypted and direct communication within your company
- Variety of chat functions, from 1:1 to team chats
- Simple collaboration through file & screen sharing
- Archive of all histories and shared files
Video meetings
- Video meetings with up to 1,000 participants
- Private meeting rooms with fixed dial-in data
- Calendar integration with all common Office tools
- Dial-in of external subscribers via browser or telephone
Provider overview
Colt SIP Trunk with Teams:
a fully-fledged telephone system

Most companies already use Microsoft 365 solutions that include both Windows and the Office package.
Teams is also integrated here. Teams can normally be used as an internal chat and video solution.
Colt now offers the option of integrating a SIP trunk into the Teams software. If you use this, it is possible to make external calls via Teams as well as being reachable via the normal telephone number. However, this solution requires that your company uses Microsoft 365 E3 or E5 licenses.
Find out more here: Microsoft 365
The advantages are obvious. Your telephone system is fully integrated into your Office 365 working environment with Outlook, Sharepoint, etc. and can be fully controlled.
Costs of the Colt SIP Trunk
Voice
Cloud telephone system
UCaaS
Costs of teams with SIP Trunk
The costs for Colt SIP trunks with Teams are significantly lower than for classic ISDN connections. Prices start from €2.30 per month / user.
The prices depend on:
- Number of channels
- Contract term
- Volume/tariffing
- Tariff model
- a new data line is required
- Prioritization via direct peering
- Type of Microsoft 365 licenses (Pro Business, E3, E5)
Are you interested in a Teams SIP Trunk integration? Contact us free of charge and without obligation. Savecall will be happy to advise you.
Technology of the Colt SIP Trunk

Looking at the solution in the background, everything is based on a Session Border Control (SBC) architecture. The SBC can be either a hardware (on-premise) or a cloud solution and is responsible for how telephony is routed for the company.
In the case of Microsoft Teams, it ensures that incoming calls are transferred to the Teams software via direct routing. However, this also offers the option of connecting external devices such as a fax machine or classic telephones. Teams itself can be used as a hardphone, directly on the PC via a headset/softphone solution or on a cell phone via an app and in any case forwards all calls to the respective employee.
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Why
Telecom & IT sourcing. Worldwide. Carrier-independent.
Selection & operation of worldwide connectivity & cloud infrastructure. Without vendor risk & unnecessary costs.
- 80+ carriers worldwide
- One point of contact
- One SLA
- One portal: mySAVECALL
- Min. 20% savings



