Alphabetic
- 18185.co.uk (Callthrough, Account)
- 1899.com for non-BT lines (Callthrough, Account)
- 1899.com for VoIP (VoIP, Account)
Andrews & Arnold (VoIP, Account)- BT Pay As You Go (VoIP, Account)
- BT Pay As You Go and F&F International (VoIP, Account)
- BT Pay As You Go and International Freedom (VoIP, Account)
- BT Unlimited Weekend Calls (Direct, Account)
- Call18866 for non-BT lines (Callthrough, Account)
- Call18866 for VoIP (VoIP, Account)
- CIX VoIP Basic PAYG (VoIP, Account)
- Community Fibre Calls (VoIP, Account)
- CytaUK Cyta.Talk 1 (Indirect, Account)
- Direct Save Telecom PAYG (Indirect, Account)
- Direct Save Telecom PAYG International Option (Indirect, Account)
- DiscountVoIP (VoIP, Prepaid)
- Everything Everywhere Pay Per Call (VoIP, Account)
- Hyperoptic Phone and 50Mb Broadband (VoIP, Account)
- Kingston Comms KC Local (Direct, Account)
- PlusNet Unlimited Broadband (Indirect, Account)
- seethelight Talk Evening and Weekend (VoIP, Account)
- Sipgate Business S (VoIP, Prepaid)
- Sky Talk Pay As You Go (Indirect, Account)
- TalkTalk Fast Broadband (Indirect, Account)
- TalkTalk Fast Broadband International Max Calls Boost (Indirect, Account)
- Telappliant Red PAYG (VoIP, Prepaid)
- Virgin Media Talk Weekends (Direct, Account)
- Virgin Media Talk Weekends and Talk International £2 (Direct, Account)
- Virgin Media Weekend Chatter (Direct, Account)
- Virgin Media Weekend Chatter and Talk International £2 (Direct, Account)
- Vodafone Home Phone (Indirect, Account)
- VoIP Cheap (VoIP, Prepaid)
- Voipfone (VoIP, Prepaid)
- Vonage Talk UK (VoIP, Account)
- Vyke Mobile (VoIP, Prepaid)
- YayYay PAYG VoIP (VoIP, Prepaid)
- Your Co-op Digital Voice (Indirect, Account)
- Zen Digital Talk (VoIP, Account)
Direct, Account
- BT Unlimited Weekend Calls
- Kingston Comms KC Local
- Virgin Media Talk Weekends
- Virgin Media Talk Weekends and Talk International £2
- Virgin Media Weekend Chatter
- Virgin Media Weekend Chatter and Talk International £2
Indirect, Account
- CytaUK Cyta.Talk 1
- Direct Save Telecom PAYG
- Direct Save Telecom PAYG International Option
- PlusNet Unlimited Broadband
- Sky Talk Pay As You Go
- TalkTalk Fast Broadband
- TalkTalk Fast Broadband International Max Calls Boost
- Vodafone Home Phone
- Your Co-op Digital Voice
VoIP, Account
- 1899.com for VoIP
- Andrews & Arnold
- BT Pay As You Go
- BT Pay As You Go and F&F International
- BT Pay As You Go and International Freedom
- Call18866 for VoIP
- CIX VoIP Basic PAYG
- Community Fibre Calls
- Everything Everywhere Pay Per Call
- Hyperoptic Phone and 50Mb Broadband
- seethelight Talk Evening and Weekend
- Vonage Talk UK
- Zen Digital Talk
VoIP, Prepaid
- DiscountVoIP
- Sipgate Business S
- Telappliant Red PAYG
- VoIP Cheap
- Voipfone
- Vyke Mobile
- YayYay PAYG VoIP
Callthrough, Account