It’s Time To Shift To Callroute
Callroute is a cloud SaaS platform that unifies cloud calling and user management across Microsoft Teams and Cisco Webex, helping businesses and partners connect to any phone system in minutes.
Built on highly available AWS cloud infrastructure, Callroute is the new home for customers moving from Sipsynergy hosted voice services.
Unlike other tools, Callroute is faster to deploy, simple to use, and built to solve challenges others don’t. Trusted worldwide and recognised in industry awards, it’s the smarter way to manage Teams and Webex – flexible, reliable, and ready for every industry.
Why Do I Need To Migrate?
Sipsynergy and Callroute are part of the same family. Callroute was created to simplify modern cloud calling by delivering a flexible cloud platform that interconnects carriers, PBXs, Microsoft Teams, Webex, and even analogue or legacy telephony services — all in one place.
This evolution gives organisations a single, unified layer for managing calling, routing, and number provisioning as they transition away from EHC and BHC.
As part of this evolution:
- Enterprise Hosted Voice (EHC) is scheduled for retirement.
- Business Hosted Voice (BHC) is currently being migrated to Callroute’s cloud platform.
- SIP Trunking will be migrated to Callroute for improved flexibility and management.
To stay fully supported and unlock new capabilities, customers need to move their services into Callroute. Your account manager will work with you to choose the right migration path and timeline.
Will My Current Service Be Switched Off?
No immediate change. There are no announced end-of-life dates. Your current Sipsynergy services remain operational while we plan your migration with you, but there are important changes ahead:
- Enterprise Hosted Voice (EHC) – This service is scheduled for retirement, and we will soon share detailed end-of-life timelines along with clear migration guidance.
- Business Hosted Voice (BHC) – The BHC service is currently being migrated to Callroute’s cloud platform. Once completed, all associated phone numbers will be fully manageable through the Callroute portal. This will provide customers with additional options to seamlessly migrate to Teams Phone or Webex Calling at a pace that suits their needs, or continue using BHC, which will remain fully supported.
- SIP Trunking – Your SIP trunking service will be migrated to Callroute for improved flexibility and management. Some equipment reconfiguration may be required, and full guidance will follow soon.
You don’t need to take immediate action. Your account manager will provide further details about what this means for you and will help you plan a smooth, well-timed move.
What Happens To My Sipsynergy Numbers?
Your numbers are already with sipsynergy and can be seamlessly migrated to Callroute at a time and date that suits you.
Migration Options Explained
As EHC is retired and BHC moves onto Callroute, you can choose from several migration options depending on how you want users to make and take calls.
Discover which option works best for your business. Choose from these 4 paths, or book a meeting to discuss alternatives.
Which Option Is Best For Your Business?
Primary user client
Microsoft Teams
Webex App
SIP Client
N/A
N/A
Not required – seamless cutover to new service
Not required – seamless cutover to new service
Not required – seamless cutover to new service
Not required – seamless cutover to new service
N/A
N/A
Various
(Microsoft certified)
Cisco Recommended Devices
Any SIP device
N/A
N/A
N/A
N/A
Microsoft-centric organisations
Cisco-centric organisations
Fully managed phone systems
Flexible number ownership
Call forwarding & basic telephony
Migration Timeframes
The basic Callroute setup is straightforward and quick. For most customers moving from Sipsynergy services, we can complete the core migration in a short, planned window.
Additional time may be required if call queues, auto attendants, or complex integrations need to be recreated or redesigned.
Your account manager will work with you to agree realistic timelines based on your environment.
Minimising Downtime
There will be no downtime, as sipsynergy will plan the cutover of traffic at a time that suits.
The new service will have been fully tested using test numbers prior to the migration.
Your account manager and our technical team will coordinate this with you so that the move from EHC to Callroute feels seamless.
Pricing Information
You will need the necessary Microsoft or Cisco 3rd party licensing depending on the option you choose. The Callroute service cost is added to this. See our pricing page for more info on costs.
Contact us for details on BHC pricing.
3rd Party License Requirements
Understand what licences are needed for each option.



