Six Degrees

UCaaS Connect

We offer the UCaaS Connect Service to connect your UCaaS vendor of choice (such as Zoom Phone, Twillio or Microsoft Teams) to the PSTN via high availability Session Border Controllers (“SBCs”) and our next generation voice network.

Features

• Microsoft Operator Connect
• Flexible caller line identity (CLI) presentation
• Number porting – retain existing numbers
• Resilient solution with automatic failover
• Multiple geographical or non-geographical number range choices
• Flexible call capacity options
• Fraud monitoring
• Proactively managed service
• Inclusive call minute bundle options
• Business grade IP telephony

Benefits

• Retain existing numbers regardless of location
• Full control of outbound caller line identity (CLI)-regardless of location
• Cost effective solution compared to ISDN
• Scalable and flexible model
• Increased resilience with automatic failover
• Compatible with the majority of SIP enabled telephony systems
• Converged solution using IP networking
• Ideal for the centralisation of multiple sites
• Number porting from other providers is fully supported

• Education pricing available
• Free trial available

Service documents

• Pricing document

  PDF

• Service definition document

  PDF

• Terms and conditions

  PDF

Request an accessible format

If you use assistive technology (such as a screen reader) and need versions of these documents in a more accessible format, email the supplier at publicsector.sales@6dg.co.uk. Tell them what format you need. It will help if you say what assistive technology you use.

Framework

G-Cloud 15

Service ID

883697009860502

Contact

Six Degrees Public Sector team
08000128060
publicsector.sales@6dg.co.uk

About your service

• Service categories:

  Systems Infrastructure Software

  Network

  Network infrastructure software

  • Network application delivery
• Multi cloud support: Yes

Service scope

• Software add-on or extension: Yes, but can also be used as a standalone service
• What software services is the service an extension to: Can be used in conjunction with other voice services, including our Livenumber Business Continuity Planning (BCP) service.
• Cloud deployment model:
  • Public cloud
  • Private cloud
  • Hybrid cloud
• Service constraints: As an IP based telephony service it will not be possible to call emergency services (999) in the event of a data connectivity outage. Please see Service Description for service dependencies.
• System requirements:
  • SIP RFC3261 compliant PABX, gateway or SBC
  • Sufficient bandwidth to support required call concurrency
  • IP Address Authentication
  • Sufficient call concurrency licences on SIP platform

User support

• Email or online ticketing support: Yes
• Support response times: Dependant on incident/request and priority level - please see attached Service Description for details.
• User can manage status and priority of support tickets: Yes
• Online ticketing support accessibility: WCAG 2.2 A
• Phone support: Yes
• Phone support availability: 24 hours, 7 days a week
• Web chat support: No
• Onsite support: Yes, at extra cost
• Support levels: Please see attached Service Description for support levels.
• Support available to third parties: Yes

Onboarding and offboarding

• Getting started: Not applicable for SIP services.
• Service documentation: Yes
• Documentation formats:
  • PDF
  • Other
• Other documentation formats:
  • Microsoft Word
  • Microsoft Excel
• End-of-contract data extraction: Not applicable for SIP services.
• End-of-contract process: We will provide transition services within reason to help the customer move to another service.
• Documentation accessibility standard: WCAG 2.2 A

Using the service

• Web browser interface: No
• Application to install: No
• Designed for use on mobile devices: No
• Service interface: Yes
• User support accessibility: WCAG 2.2 A
• Description of service interface: Users can raise support tickets and change requests etc. through Six Degrees' online customer portal, which is provided via our chosen IT Service Management tool.
• Accessibility standards: WCAG 2.2 A
• Accessibility testing: None
• API: No
• Customisation available: Yes
• Description of customisation: Users can choose geographical and non-geographical numbering from the UK and rest of world. We can provide load sharing, active / standby configurations for SIP endpoints and trunk capacity to suit their requirements.

Scaling

• Independence of resources: We proactively manage our network capacity to ensure we have sufficient headroom. We configure all customer trunks with their number of contracted channels to ensure one customer cannot impact another customer's ability to use the service.

Analytics

• Service usage metrics: Yes
• Metrics types: We are able to provide voice quality statistics, including post dial delay, latency, jitter and R-Factor voice quality. We can also provide SIP trunk utilisation statistics upon request.
• Reporting types: Reports on request
• Resource tagging: No
• FOCUS resource tagging: No

Resellers

• Supplier type: Not a reseller

Staff security

• Staff security clearance: Conforms to BS7858:2019
• Government security clearance: Security Clearance (SC)

Asset protection

• Knowledge of data storage and processing locations: Yes
• Data storage and processing locations: United Kingdom
• User control over data storage and processing locations: No
• Datacentre security standards: Complies with a recognised standard (for example CSA CCM version 4.0)
• Penetration testing frequency: At least every 6 months
• Penetration testing approach: ‘IT Health Check’ performed by a CHECK service provider
• Protecting data at rest: Physical access control, complying with CSA CCM v4.0
• Data sanitisation process: Yes
• Equipment disposal approach: Complying with a recognised standard, for example CSA CCM v4.0, CAS (Sanitisation) or ISO/IEC 27001
• Data sanitisation type: Explicit overwriting of storage before reallocation / Secure Erase

Data importing and exporting

• Data export approach: Not applicable for SIP services.
• Data export formats: Other
• Other data export formats: Not applicable for SIP services.
• Data import formats: Other
• Other data import formats: Not applicable for SIP services.

Data-in-transit protection

• Data protection between buyer and supplier networks: Other
• Other protection between networks: SIP traffic terminates on the Six Degrees Session Border Controllers (SBCs) which act as back to back user agents (B2BUA), which provides robust security between networks. Traffic is unencrypted as standard, TLS and SRTP is available as a separate cost option.
• Data protection within supplier network: Other
• Other protection within supplier network: Data (SIP traffic) within the Six Degrees network is authenticated based upon a known IP address which provides a high level of security. Different customers' traffic is separated into different MPLS VRFs.

Availability and resilience

• Guaranteed availability: Please see service levels in the attached Service Description.
• Approach to resilience: Our service is designed with no single points of failure - we have geographically diverse and highly available session border controller clusters, multiple physical and logical carrier trunks and a multi-path QOS enabled MPLS network over which services run.
• Outage reporting: We have a suite of network management tools that proactively alert should there be any service issues.

Identity and authentication

• User authentication needed: Yes
• User authentication: Other
• Other user authentication: SIP trunk IP address authentication.
• Access restrictions in management interfaces and support channels: SIP trunk IP address authentication. The Six Degrees SBCs will only allow traffic from known customer IP addresses. Traffic from other source IP addresses will be discarded.; ; Only authorised contacts are granted access rights to the service. The Support Desk will only accept requests from authorised contacts. Communication with anybody at Six Degrees will need to be pre-approved by a known individual in writing. Management of the infrastructure is via dedicated connectivity and out of band of customer data and customer networks
• Access restriction testing frequency: At least every 6 months
• Management access authentication: Username or password

Audit information for users

• Access to user activity audit information: No audit information available
• Access to supplier activity audit information: No audit information available
• How long system logs are stored for: Between 1 month and 6 months

Security governance

• Named board-level person responsible for service security: Yes
• Security governance certified: Yes
• Security governance standards:
  • ISO/IEC 27001
  • Other
• Other security governance standards: Cyber Essentials & PSN
• Information security policies and processes: All ISO 27001:2013 controls and associated policies are in place. Enhanced weekly and quarterly external approved scanning vendor (ASV) vulnerability scanning. Six Degrees operate a rolling internal audit programme to ensure continuity of compliance to our various accreditations, as well as internal technical auditing of our systems through the use of various integrity checks. This ensures that there is always a fully justified and documented Change Request for any modification of our secure systems.
• Software Security Code of Practice: Yes

Operational security

• Configuration and change management standard: Supplier-defined controls
• Configuration and change management approach: All non-standard changes must be pre-authorised by going through a peer, senior and CAB approval process. Standard changes are created in template form and are approved in CAB before being implement into Change controls.
• Vulnerability management type: Supplier-defined controls
• Vulnerability management approach: Six Degrees (Public Sector) run an internal vulnerability test once a week. All reported vulnerabilities that are reported are categorised into priority depending on the severity and a case is logged with the operation team who will fix the vulnerability under the time frames dictated by Public sector patching policy. This conforms to the PCI-DSS standard.
• Protective monitoring type: Supplier-defined controls
• Protective monitoring approach: Six Degrees (Public Sector) have a protective monitoring system where all logs are centralised and checked on a daily basis for security breaches using several key search filters. Alerts are sent out for high risk activity and are pro-actively responded to by the operations and security teams. This conforms to the PCI DSS standard.
• Incident management type: Supplier-defined controls
• Incident management approach: Six Degrees operate an ITIL aligned incident management process with associated procedures for security related incidents. The process has a clearly defined governance framework, including roles & responsibilities, clear policies and associated KPIs. This process conforms to PCI DSS.
• Post-quantum cryptography secure: Yes

Secure development

• Approach to secure software development best practice: Supplier-defined process

Public sector networks

• Connection to public sector networks: Yes
• Connected networks:
  • Public Services Network (PSN)
  • Health and Social Care Network (HSCN)

Pricing

• Discount for educational organisations: Yes
• Free trial available: Yes
• Description of free trial: We can provide free SIP channel rental for a period of 3 months, the customer pays for call usage.

Discount percentage by annual call-off contract value (excluding VAT)

• Less than £250,000: 0%
• Between £250,000 and £500,000: 2.5%
• Between £500,001 and £1,000,000: 5%
• Between £1,000,001 and £2,500,000: 7.5%
• Between £2,500,001 and £5,000,000: 10%
• Over £5,000,001: 12.5%

Non-mandatory Standards and certifications

• ISO/IEC 27001 certification: Yes
• Who accredited the ISO/IEC 27001: LQRA
• ISO/IEC 27001 accreditation date: Friday 13 March 2015
• What the ISO/IEC 27001 doesn’t cover: N/A all is covered
• ISO 28000:2022 certification: No
• ISO 9001 certification: Yes
• Who accredited the ISO 9001 certification: LRQA
• ISO 9001 accreditation date: Tuesday 11 August 2009
• What the ISO 9001 doesn’t cover: N/A all is covered
• Quality management systems (QMS): Yes
• CSA STAR certification: No
• PCI certification: Yes
• Who accredited the PCI DSS certification: IT Governance Ltd
• PCI DSS accreditation date: Thursday 6 November 2025
• What the PCI DSS doesn’t cover: N/A all is covered
• Cyber essentials: Yes
• Please provide your Cyber Essentials Certificate Number: 4fac61c0-0804-4641-bafb-8491a85aefad
• Cyber essentials plus: Yes
• Please provide your Cyber Essentials Plus Certificate Number: Bd936e65-aa84-4efe-a586-1a80b7409c04
• Other security certifications: No

Social value

• Section B - Commitment for Future: Delivery:

  • Mission: Kick start economic growth. To secure the highest sustained growth in the G7 - with good jobs and productivity growth in every part of the country making everyone, not just a few, better off.

    Policy Outcome 1: Fair work: That offers fair wages and good working conditions. Help people get a job, stay in work, and progress in their careers, with good employment opportunities across the country. Notes: Where there is a large proportion of labour costs in the contract, commercial teams should consider MAC in Outcome 1 as a priority

    • Providing opportunities for, and measuring and monitoring of, staff workforce conditions over time, including employee engagement, involvement in decision-making and satisfaction and adapting to any changes in the results, with clear processes for acting on issues identified
    • Plans to engage the contract workforce in deciding the most important workplace issues to address
    • Monitoring of employee engagement rates (by protected characteristic) and, where necessary, the development of actions to ensure all voices are heard across the diversity of the workforce
    • Employment contracts that reflect actual hours worked; steps taken to ensure employees understand their contracts and have the ability to review and adjust them if actual hours regularly exceed contracted hours
    • Activities that support an environment where staff are educated about, and feel empowered to, address their physical wellbeing
    • Activities that support an environment where staff are educated about and feel empowered to report and address bullying and harassment
    • Activities to cascade good practice on fair working conditions throughout the supply chain
    • Offer a pay and leave entitlement to all eligible staff who become kinship carers, ideally equivalent to statutory adoption pay and leave
    • Payment of more than the National Minimum Wage or National Living Wage (as appropriate) to the contract workforce
    • Monitoring and reporting of gender and ethnicity pay gaps and plans to address them where necessary
    • Plans for an appropriate income replacement policy for staff who are required to spend time away from work to care for a sick dependent or close relative
    • Understanding of in-work progression issues affecting the market, industry or sector relevant to the contract, and in the supplier’s own organisation and those of its key sub-contractors
    • Measures to support in-work progression to help people in the contract workforce, to move into higher paid work by developing new skills relevant to the contract
    • Support for the contract workforce by providing career advice, and providing opportunities for staff working on the contract with in-work progression career development into known skills shortages or high growth areas
    • Support for educational attainment relevant to the contract, including training schemes that address skills gaps and result in recognised qualifications
    • Volunteering opportunities for staff

Service documents

• Pricing document

  PDF

• Service definition document

  PDF

• Terms and conditions

  PDF

Request an accessible format

If you use assistive technology (such as a screen reader) and need versions of these documents in a more accessible format, email the supplier at publicsector.sales@6dg.co.uk. Tell them what format you need. It will help if you say what assistive technology you use.