SIP Channels for Microsoft Teams Direct Routing

SIP Channels can be a cost effective way to deploy Microsoft Teams Calling. It provides cost effective voice rates, and the ability to match the number of simultaneous calls to your requirements.

SIP Trunks will connect via our SBC into the Microsoft Teams Phone system to provide a cost effective solutions. Using Microsoft Teams calling allows your business to unify voice, Video, Chat and File Sharing on the one platform.

Unlike your old ISDN and PSTN lines, Microsoft Teams SIP is extremely scalable, and a cost-effective way to ensure your Microsoft Teams Calling deployment meets your business needs. If you would prefer a per user model for Teams Calling we have too! We can provide the latest Teams Calling handsets and Teams Room video conferencing equipment if required.

Teams Direct Routing SIP

Advanced Teams Phone System Features

With Next Telecom your Teams Experience is not limited to the Microsoft suite of products. Our Call Recording, Reporting and Analytics are all native to the Teams Phone System.

Microsoft Teams Phone System Advanced Features

SIP for Microsoft Teams is perfect for business wanting to move on to the Microsoft Teams Phone System but not needing a call channel for every user.

Teams SIP Channel Features:

  • Delivered by a certified Microsoft Gold Communications Partner
  • Ability to scale the number of call channels for Teams Calling
  • The best way to get cost effective Microsoft Teams pricing for your phone system.
  • Only pay for the lines you need and the calls you make
  • Number availability in more than 6000 cities globally
  • 24/7 support manned by customer service focused engineers
Teams Phone System provider APAC & EU

SIP for Microsoft Teams Direct Routing


Married to your phone numbers? Number portability allows you to retain your existing numbers when switching to a Next Telecom Teams Phone Plan.


Teams SIP Direct Routing channels allow you to use the Microsoft Teams Phone system and there is no need for handsets. We the latest Teams handsets available, but you dont need them.


Order the Number of Teams Calling Channels you need now, and scale up (or down) quickly if required. Teams SIP Direct Routing Channels are the solution that grows with your business.


Pay for the number of Teams SIP Direct Routing lines you need and the calls you make, saving you more.


With Teams SIP Call Plans you’re always online. Quickly divert your calls to alternative locations or have staff work from home or on the road.


24/7 SIP for Teams SIP Channel support manned by customer service focused engineers.

Contact Our Teams Calling Experts now

SIP Trunking FAQ

What is SIP Trunking?

SIP Trunking is the delivery of incoming and outgoing phone calls over a data connection using a combination of session initiation protocol (SIP) and real-time transport protocol (RTP). Put simply, it is a dial tone over the Internet.

Can SIP trunks replace ISDN services?

Yes SIP Trunks make the ideal ISDN replacement technology. In most cases they will also lead to cost savings over ISDN services that are being decommissioned.

How many SIP Trunks do I need?

A SIP Trunk consists of a number of SIP lines or channels. Each SIP line can carry one simultaneous call – so a trunk with six lines can be used for up to six concurrent inbound or outbound calls. A general guide is to divide the number of users by 2-5, but that should only be used as a guide and will vary based on how you use telephony.

Is SIP call quality good?

Most business grade internet connections are totally suitable for SIP and a good quality SIP call is better than the best quality analogue call. It is important to choose a provider that uses a Tier-1 network and you should ensure you have enough internet bandwidth to support the expected number of concurrent calls. Voice quality is dependent on bandwidth, and your connection’s latency and jitter.

Can I keep my current phone numbers?

Absolutely. You are able to move your existing phone numbers across to this service.

Is SIP the same thing as VoIP?

Although SIP and VoIP are sometimes used interchangeably, they are not the same thing. The term VoIP stands for Voice over Internet Protocol. It is a broad term that covers any phone call made over the Internet. The term encompasses a group of protocol technologies of which SIP is an example i.e. SIP is one of the specific protocols that enable VoIP.

SIP Trunking Features

  • Save on call costs compared to ISDN or PSTN – PAYG or unlimited call plans.
  • 100 Number DID ranges available.
  • Keep your existing numbers. We can port in ISDN and PSTN phone numbers.
  • NBN ready SIP service available prior to the copper cut off.
  • Use your existing phone system with a IP card or a SIP gateway.
  • No physical limit to the number of channels you can use.
  • Flexibility to meet your business demands – increase or decrease channels when you need to.
  • Connect to the Cloud – enables a seamless and simple upgrade to a full Cloud solution down the track.
  • Easy upgrade to MS Teams Calling.
  • A Private, secure data network carries SIP voice Traffic.
  • Guaranteed call quality and backed up with Service Level Agreements.