3CX SIP Trunk Providers – UK

These UK SIP Trunk Providers have been tested and certified by 3CX. With no manual configuration required you can just plug and play your PBX with a SIP Trunk of your choice. Preferred SIP Trunk providers are tested against each build of 3CX. Both parties are committed to providing end-to-end support to the UK customers who choose to use the combination of 3CX with a preferred SIP Trunk.

Preferred


 

Spitfire UK VoIP Providers Provider Spitfire DTMF Support (RFC2833) Yes
Support Cooperation Yes IPV6 Ready No
Provider Type Register Based Online Sign-Up Possible? Yes
Fax Support Not Working Online Trunk-Management Portal? Yes
SI Mode Yes – Automata Link to Support Document View
Clip No Screening Support No 302 Diversion Support No
Anonymous Calling Yes  Included in Auto-Testing No
TalkTalk UK VoIP Provider Provider TalkTalk Business DTMF Support (RFC2833) Yes
Support Cooperation Yes IPV6 Ready No
Provider Type IP Based (Static Public IP Required) Online Sign-Up Possible? Yes
Fax Support Audio Online Trunk-Management Portal? Yes
SI Mode Yes – Static (Single Account Support) Link to Support Document View
Clip No Screening Support Yes 302 Diversion Support No
Anonymous Calling Yes  Included in Auto-Testing No

Supported


 

BT WSIPT UK SIP Trunk Provider Provider BT WSIPT DTMF Support (RFC2833) Yes
Support Cooperation Yes IPV6 Ready No
Provider Type IP Based (Static Public IP Required) Online Sign-Up Possible? No
Fax Support T38 Upscale Online Trunk-Management Portal? No
SI Mode DID – Inbound Only Link to Support Document View
Clip No Screening Support Yes 302 Diversion Support No
Anonymous Calling Yes  Included in Auto-Testing No
Brightstar UK VoIP Provider Provider Brightstar DTMF Support (RFC2833) Yes
Support Cooperation Yes IPV6 Ready No
Provider Type Register Based Online Sign-Up Possible? No
Fax Support Not Working Online Trunk-Management Portal? No
SI Mode Yes – Automata Link to Support Document N/A
Clip No Screening Support Yes 302 Diversion Support No
Anonymous Calling Yes  Included in Auto-Testing No
Gamma UK VoIP Provider Provider Gamma DTMF Support (RFC2833) Yes
Support Cooperation Yes IPV6 Ready No
Provider Type IP Based (Static Public IP Required) Online Sign-Up Possible? No
Fax Support T38 Bypass Online Trunk-Management Portal? No
SI Mode Yes – Static (Single Account Support) Link to Support Document N/A
Clip No Screening Support No 302 Diversion Support No
Anonymous Calling Yes  Included in Auto-Testing No
UK SIP Trunk Provider Gradwell Provider Gradwell DTMF Support (RFC2833) Yes
Support Cooperation Yes IPV6 Ready No
Provider Type IP Based (Static Public IP Required) Online Sign-Up Possible? No
Fax Support Not working Online Trunk-Management Portal? Yes
SI Mode DID Inbound Only Link to Support Document View
Clip No Screening Support No 302 Diversion Support No
Anonymous Calling No  Included in Auto-Testing No
IT Communications UK VoIP Provider Provider I.T Communications DTMF Support (RFC2833) Yes
Support Cooperation Yes IPV6 Ready No
Provider Type Register Based Online Sign-Up Possible? No
Fax Support T38 Bypass Online Trunk-Management Portal? Yes
SI Mode DID Inbound Only Link to Support Document View
Clip No Screening Support No 302 Diversion Support Yes
Anonymous Calling No  Included in Auto-Testing No
T4Com UK VoIP Provider Provider T4Com DTMF Support (RFC2833) Yes
Support Cooperation Yes IPV6 Ready No
Provider Type Register Based Online Sign-Up Possible? No
Fax Support Not Working Online Trunk-Management Portal? No
SI Mode Yes – Automata Link to Support Document N/A
Clip No Screening Support Yes 302 Diversion Support No
Anonymous Calling Yes  Included in Auto-Testing No
Voiceflex UK VoIP provider Provider Voiceflex DTMF Support (RFC2833) Yes
Support Cooperation Yes IPV6 Ready No
Provider Type Register Based Online Sign-Up Possible? No
Fax Support T38 Bypass Online Trunk-Management Portal? Yes
SI Mode Yes – Static (Single Account Support) Link to Support Document View
Clip No Screening Support Yes 302 Diversion Support No
Anonymous Calling Yes  Included in Auto-Testing No
Zen Business Talk SIP UK VoIP Provider Provider Zen Business Talk SIP DTMF Support (RFC2833) Yes
Support Cooperation Yes IPV6 Ready No
Provider Type Register Based Online Sign-Up Possible? No
Fax Support Audio Online Trunk-Management Portal? No
SI Mode Yes – Static (Single Account Support) Link to Support Document View
Clip No Screening Support No 302 Diversion Support No
Anonymous Calling No  Included in Auto-Testing No