Modern voice connectivity without legacy limitations
Traditional phone lines were designed for fixed locations and limited scalability. SIP Trunks use your data connection to carry voice traffic, allowing calls to scale easily and integrate with modern platforms.
With SIP Trunks, organisations benefit from:
- Flexible channel scaling as call volumes change
- Geographic and non-geographic number support
- Centralised call routing across sites
- Lower call costs compared to legacy services
SIP Trunking provides a future-ready foundation for business voice.
How BSAS designs and delivers SIP Trunking
We take a structured, design-led approach to SIP Trunk deployments:
- Assess your existing phone system and call requirements
- Design trunk capacity and routing based on call volumes
- Integrate SIP Trunks with PBX, cloud voice, or Teams Direct Routing
- Ensure network readiness and voice prioritisation
- Configure resilience and failover options
- Manage number porting and testing
- Provide ongoing monitoring and support
This ensures SIP connectivity delivers consistent call quality and availability.
Why organisations choose SIP Trunks
SIP Trunking is a flexible option for many voice environments:
- Supports modern PBX platforms and cloud voice
- Enables gradual migration from legacy telephony
- Improves resilience through geographic routing
- Reduces costs and simplifies call management
- Avoids dependency on physical phone lines
When delivered properly, SIP Trunks provide stability without rigidity.
This service is ideal for organisations that:
- Use 3CX or other IP-based phone systems
- Want to replace ISDN or legacy PSTN services
- Need scalable voice capacity without hardware changes
- Require resilient inbound and outbound calling
- Want voice connectivity aligned with modern networks
SIP Trunks suit both standalone voice systems and integrated UC platforms.