Yeastar P-Series
SMB PBX sold as appliance, software or cloud edition through channel partners — solid and well-supported in the UK, but an infrastructure product rather than a cloud-native platform.
How we testYeastar's P-Series comes in three editions — a physical appliance (P520–P570, roughly 20 to 300 users), a Software Edition you run on your own VM or cloud, and a Cloud Edition hosted by Yeastar or a partner — licensed per PBX via all-inclusive Standard/Enterprise/Ultimate plans rather than per-user add-ons. It has good Teams presence sync (via Call2Teams), CRM integrations, an Open API with webhooks, Linkus clients and enhanced 999 handling, and a strong UK channel.
Only the appliance plan price is public (P550 Enterprise about $33 a month billed annually); cloud and software pricing is partner-portal only. We have run Yeastar in production: like 3CX, it needs infrastructure behind it rather than being a properly cloud-native platform, which is the main reason it sits mid-table. Trustpilot has no usable data.
Pros
- +Genuine on-prem appliance option plus software and cloud editions
- +All-inclusive feature plans — no per-user add-ons
- +Strong UK channel and enhanced 999 handling
Cons
- −Needs your own (or a partner’s) infrastructure — not cloud-native (our direct experience)
- −No public cloud or software-edition pricing
- −Partner-only purchasing
Pricing
Minimum commitment: $399 — $399/yr for the entry licence. The least you can spend before walking away; excludes numbers, minutes and add-ons.
P550 Enterprise plan
$399/yr · annual commitment
Month-to-month: not published
- ✓Per PBX per year (~$33/mo equivalent); no monthly term
P550 appliance (UK reseller)
£1,017one-time
- ✓Up to ~50 users; P560 ~£1,416
Specifications
| Rating | 3.0 |
| Month-to-month (entry plan) | Annual only |
| Annual commit, per month | $399/yr |
| Minimum commitment* | $399 |
| Min seats | 1 |
| Deployment | Hybrid |
| Sales model | Partner only |
| Public API | ✓ |
| MCP server | No |
| Emergency 911/999/112 | ✓ |
| Integrations | Microsoft Teams (Call2Teams), Zoho, HubSpot +4 |
| Commitment for annual rate (months) | 12 |
*How we calculate minimum commitment. Headline per-user prices hide the real cost of trying a platform. Total cost of ownership is licence × seats × term, plus usage, add-ons, setup fees and any early-exit charges. Our "minimum commitment" figure is the floor of that: the entry plan's committed rate × the minimum seats the vendor will sell × the months you must commit to (one month at the month-to-month rate where there is no commitment; the licence price where it is sold per year). It deliberately excludes usage, add-ons and prerequisite licences, so your real first bill will be higher — but never lower than this. For Teams Phone the excluded prerequisites are the Microsoft 365 and Teams licences.
Researched and drafted with AI assistance; reviewed and approved by Tim Meredith. How we use AI