Migrate To Callroute
Using Sipsynergy EHC, BHC, or SIP Trunking?
Enterprise Hosted Voice (EHC) is being retired, and Business Hosted Voice (BHC) is migrating to Callroute.
Plan your migration today to secure a seamless, zero-downtime transition.
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.
Microsoft Teams Phone
Migrate your numbers to make and take calls in Microsoft Teams.
Webex Calling
Use your numbers with Cisco devices and Webex collaboration tools.
Business Hosted Voice
A fully managed phone service without a third-party platform.
SIP Trunking
Keep your numbers and connect them flexibly to third-party voice platforms.
Basic Phone
Keep your numbers and forward calls to mobiles, landlines or SIP phones.
Which Option Is Best For Your Business?
- Choose Teams Phone if: your business is Microsoft-first, lives in Teams daily, and prioritizes tight Microsoft 365 integration.
- Choose Webex Calling if: you already use Cisco handsets, room devices, or conferencing. It’s also ideal if you need advanced PBX functionality, hybrid deployments with on-prem systems, or wide third-party SIP device support.
- Choose Business Hosted Voice (BHC) Calling if: you want a fully managed phone system delivered directly by Sipsynergy, without relying on a third-party platform such as Microsoft or Cisco..
- Choose SIP Trunking if: you want to keep your numbers with and connect them flexibly to third-party voice platforms or PBX systems.
- Choose Basic Phone if: you want to keep your numbers and simply forward calls to mobiles, landlines, or SIP phones without needing a full phone system.
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
(e.g., PBX)
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.
Teams Phone
Each user requires a Teams Phone license (add-on or included in some bundles).
Webex Calling
Each user requires the appropriate Cisco Webex Calling license.
SIP Trunking
No licenses required.
Basic Phone
No licenses required.
FAQ's: Sipsynergy To Callroute Migration
Has there been an end of life announcement for EHC, BHC or SIP trunk?
Yes, there are now clear plans for Sipsynergy voice services:
EHC (Enterprise Hosted Voice) is being retired. You will receive a minimum of 3 months’ notice before your EHC service is terminated.
BHC (Business Hosted Voice) is being migrated from Sipsynergy data centres to Callroute’s AWS-hosted cloud platform rather than continued in its current form.
SIP Trunking remains available and is not currently subject to an end-of-life notice.
Your account manager will confirm what this means for you and share specific timelines.
Is there a termination period for EHC, BHC or SIP Trunking if converting to Callroute?
No, any contractual notice period (typically 90 days) for customers on EHC, BHC, or SIP trunk will be waived.
Does Callroute / Sipsynergy sell the Microsoft or Cisco licenses?
Sipsynergy does not resell Microsoft licenses; these need to be purchased separately. In some instances, Webex Calling licenses can be bundled into the subscription (at an additional cost). Please get in touch with us for further details.
Is there a need for any physical hardware if migrating to Callroute?
No. Callroute is a cloud service. The only new hardware you may need is associated with handsets or meeting room devices. Both Teams and Webex can also run via apps on a phone or PC.
Will my existing handsets still work with Teams or Webex?
Some handsets can be repurposed via a firmware upgrade to work with Microsoft Teams. However, we recommend certified devices for best results. Options are available from Poly, AudioCodes, and Yealink.
Can I connect an of my existing analogue devices to Callroute?
If you have these, Callroute can interconnect different voice environments. So yes, subject to the end user having ATAs or similar equipment to connect physical devices.
Can I recreate call queues or auto attendants?
We can recreate call flows, call queues, and auto attendants to match your current design or improve them as part of the migration.
Note that there may be one-off costs associated with building new call queues. Please contact us for more details.
Can I still have call recording?
Yes. Call recording options are available. See our Call Recording section for details.
Will my EHC handsets work with BHC?
No. EHC handsets are locked to Cisco services and cannot be used with BHC. To migrate to BHC, you will need new standard SIP handsets. Please contact us to discuss.
Next Steps To Migrate
Talk To Us
We’ll review your current setup and recommend the smoothest path.
Plan Your Migration
We schedule a no-downtime migration window that suits your business.
Test Then Switch
We validate call flows with test numbers, then cut over live traffic.
Book a Migration Consultation
Ready to start? Book a meeting with our experts to plan your migration.