Why UK Yeastar customers switch.
- Partner-ecosystem fragility. Yeastar's UK partner network is real but thinner than 3CX's. If your Yeastar MSP becomes unresponsive, finding a replacement takes longer than the equivalent search for a new 3CX MSP. Compounds when you most need a new partner.
- S-Series appliance end-of-life. If you're on an S20, S50, or S100 appliance bought 5–7 years ago, end-of-support is approaching. Refresh options: new Yeastar S-Series appliance, Yeastar P-Series cloud, or switch vendor entirely. Worth comparing fresh.
- Integration depth for sector-specific tools. If you're rolling out Clio, LEAP, Iris, Software of Excellence, or another sector-specific software, the 3CX integration story is more mature than Yeastar's. Click-to-call, screen-pop, call-logging-back-to-matter work more consistently on 3CX.
Cost comparison.
Cloud-deployed Yeastar P-Series and managed 3CX land at similar all-in monthly pricing. The cost case for switching from Yeastar to 3CX isn't about TCO — it's about ecosystem and integration. Refreshing an aging S-Series appliance involves new hardware purchase (~£500–1,500), new maintenance licence, and potentially upgraded handsets. Cost-equivalent to a fresh 3CX-managed deployment. The decision is then which product family better fits the next 5–10 years.
Switching mechanics from S-Series appliance.
- Week 1 — audit. Current Yeastar setup, appliance model, age, current MSP relationship, handset inventory, integration list.
- Week 2–4 — 3CX provisioning. UK hosting, Gamma SIP, new Yealink handsets (existing handsets often re-usable if they're standard SIP — Yealink, Snom, Fanvil).
- Week 4–5 — number porting. Yeastar's SIP carrier (usually Gamma or similar UK wholesale) — porting straightforward.
- Week 5–6 — cut-over. Old Yeastar appliance decommissioned. Handsets re-provisioned to register against 3CX. Cut-over weekend.
Switching mechanics from P-Series cloud.
Cleaner because there's no hardware step. Yeastar P-Series → 3CX is a software-to-software migration. 4–6 weeks total: provisioning, porting, configuration migration, cut-over. Existing handsets re-provision against 3CX directly.
When to stay on Yeastar.
- S-Series appliance still under active support with a responsive partner. Don't fix what isn't broken.
- Heavy investment in Yeastar-specific integrations or call-flow logic. Migration cost can outweigh the benefit if your call-flow design is deep.
- Strict on-prem requirement that S-Series satisfies cleanly. 3CX on a Mini PC can replicate this but you're swapping one appliance for another with no clear win.
What we'll tell you at audit.
The honest Yeastar audit conversation is about your current partner relationship and the integration story for the next 3–5 years. If both are healthy on Yeastar, stay. If either is weak, 3CX-managed via Port Phones gives you the larger ecosystem and deeper integrations. Book a free audit.
