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- O2 Business SIP Trunking
On the recordRead 8 Oct 202615 facts
O2 Business SIP Trunking
Slough, Berkshire, UK
Plans and prices
SIPT Back Up Channel
£1usage-based
Underlying SIP access excluded
Read 8 Oct 2026 · assets.applytosupply.digitalmarketplace.service.gov.uk
IP Voice (SIP Trunking)
£4.50a month
G-Cloud 14 listing; required underlying SIP access may be additional
Read 8 Oct 2026 · applytosupply.digitalmarketplace.service.gov.uk
SIPT Channel Standard
£4.50usage-based
Underlying SIP access excluded
Read 8 Oct 2026 · assets.applytosupply.digitalmarketplace.service.gov.uk
SIPT Channel Standard including mins
£6usage-based
Fair Use Policy applies; underlying SIP access excluded
Read 8 Oct 2026 · assets.applytosupply.digitalmarketplace.service.gov.uk
SIPT Channel Geo and Network Resilient
£14usage-based
Fair Use Policy applies; underlying SIP access excluded
Read 8 Oct 2026 · assets.applytosupply.digitalmarketplace.service.gov.uk
On the record
- Audience
- O2 describes its SIP Trunking service as intended for businesses with a PBX, including small businesses, enterprises, and public sector organisations.static-www.o2.co.uk · read 8 Oct 2026
- Availability
- The marketplace listing states guaranteed platform availability of 99.999% under an SLA.applytosupply.digitalmarketplace.service.gov.uk · read 8 Oct 2026
- Call charging
- Outbound calls can use PAYG per-minute or per-call charging, or a flat-rate tariff with included call allowances.assets.applytosupply.digitalmarketplace.gov.uk · read 8 Oct 2026
- Connectivity
- The service can use supplier IPVPN/SD-WAN or internet services, or third-party internet access.assets.applytosupply.digitalmarketplace.service.gov.uk · read 8 Oct 2026
- Features
- Listed features include anonymous call reject, incoming and outbound call barring, call diverts, CLIP, CLIR, and new or ported numbers.applytosupply.digitalmarketplace.service.gov.uk · read 8 Oct 2026
- Number porting
- Geographic single-line and multi-line numbers can be ported from other licensed operators to the service.assets.applytosupply.digitalmarketplace.gov.uk · read 8 Oct 2026
- Portal
- The optional web portal lets administrators manage calling features and view inbound and outbound call reports.assets.applytosupply.digitalmarketplace.gov.uk · read 8 Oct 2026
- Purpose
- SIP Trunking offers an ISDN migration path for buyers who want to retain a PBX.applytosupply.digitalmarketplace.service.gov.uk · read 8 Oct 2026
- Reporting
- Portal users can create or schedule call reports and download call logs in CSV format.assets.applytosupply.digitalmarketplace.gov.uk · read 8 Oct 2026
- Requirements
- Buyers must use approved Session Border Controllers configured to the supplied guides and provide compatible IPVPN/SD-WAN or internet access.applytosupply.digitalmarketplace.service.gov.uk · read 8 Oct 2026
- Resilience
- The listing states that each SIP trunk has platform-side resilience across two geographically resilient points of presence, with optional dual-trunk active/standby or active/active configurations.applytosupply.digitalmarketplace.service.gov.uk · read 8 Oct 2026
- Scalability
- The service definition says capacity can range from 15 to 5,000 SIP channels, with more available by discussion with the supplier.assets.applytosupply.digitalmarketplace.service.gov.uk · read 8 Oct 2026
- Security
- The listing reports ISO/IEC 27001 certification, Cyber Essentials and Cyber Essentials Plus, and ISO 22301 and ISO 20000 certifications.applytosupply.digitalmarketplace.service.gov.uk · read 8 Oct 2026
- Support
- The listing offers phone support 24 hours a day, 7 days a week, and lists target restoration times by incident priority.applytosupply.digitalmarketplace.service.gov.uk · read 8 Oct 2026
