Gamma Telecom
UK network operator selling SIP trunks over broadband, Ethernet or private circuits, with Teams Direct Routing
Quick Overview
| Company | Gamma Telecom Limited (Gamma Communications PLC group) |
|---|---|
| Category | SIP Trunking and Virtual Number Providers |
| Headquarters | Newbury, United Kingdom |
| Founded | Not stated |
| EU Presence | Yes - United Kingdom (UK) |
| Data Location | Not stated on the pages checked |
| Open Source | No |
| GDPR Compliant | Yes |
| Self-Hosting | No |
| Main Features | SIP Trunks, SIP Trunk Call Manager, inbound call management, Genesys BYOC Cloud, Teams Direct Routing, broadband, Ethernet or private access circuit |
| Pricing | On request |
| Best For | UK organisations with an on-premise PBX and multiple sites |
| Replaces | Telnyx, ISDN lines |
Detailed Review
Gamma's legal page lists Gamma Telecom Limited as a company incorporated in England and Wales, with its principal place of business in Newbury. It belongs to the Gamma Communications group, which also owns the German provider Placetel.
The SIP Trunks page calls the service a replacement for ISDN and describes it as a way to reach the public telephone network from an on-premise system through an internet connection.
Connection options
A site can reach the network over broadband, Ethernet or a private access circuit, the last of which the page presents as the more secure route. The telephone system can sit on site or in a managed colocation service, or both together.
That range is wider than the pure internet-only trunks of the developer-oriented suppliers, and it suits organisations with several offices.
Resilience features
The page states 99.99% availability, voice channel guarantees and quality of service assurance. It also describes rerouting calls between two sites if one fails, and an inbound call management add-on for redirecting numbers when trunking is down.
These are the vendor's own claims; contract schedules matter more than a web page when service credits are at stake.
Teams and contact-centre links
Gamma lists Direct Routing for Microsoft Teams and a Genesys BYOC Cloud option next to the basic trunk, so the same carrier can serve a PBX, a Teams deployment and a contact centre.
The company says it serves one in three UK businesses with cloud voice, a figure taken from its own page.
Limitations to Consider
Prices are not published, and the site routes enquiries through sales and its partner channel rather than a self-service sign-up. The focus is the UK market, so a company needing numbers in many countries would compare it with DIDWW. The data location was not stated on the pages checked.
Who Should Use Gamma Telecom
UK organisations that keep an on-premise phone system, run several sites, or need Teams Direct Routing from a carrier with its own network.
Pros and Cons
Pros
- UK operator with its own network
- Private access circuit option
- Direct Routing for Microsoft Teams
- Genesys BYOC Cloud offered
- Managed colocation available
Cons
- No published prices
- Sales and partner-led purchase
- UK-centred coverage
- Data location not stated on pages checked
Alternatives to Gamma Telecom
Other European sip trunking and virtual number providers worth comparing before you decide:
Simwood
United Kingdom · Bristol carrier that owns its voice network and exposes trunks through a portal and API
DIDWW
Ireland · Dublin-contracted wholesale supplier of SIP trunks and numbers with published per-minute rates
easybell
Germany · Berlin provider with trunk plans from two to 1,000 channels and no minimum term
sipgate
Germany · Duesseldorf provider connecting Asterisk, 3CX or Starface systems to the German network
See all European sip trunking and virtual number providers or compare them directly against Telnyx on our alternatives page.
Frequently Asked Questions
Its legal page lists Gamma Telecom Limited, incorporated in England and Wales with company number 4340834, within the Gamma Communications group.
Yes. Gamma lists Direct Routing for Teams among its voice products.
Not on the product page. The site directs buyers to contact sales or a partner.