VoIP
Yeastar PBX
Appliance and software PBX range used where an on-premises unit with built-in FXO/FXS/BRI interfaces and vendor firmware support is the practical answer.
Capabilities
What we implement
- S-Series / P-Series deployment
- Analog, BRI and PRI interface integration
- Linkus client rollout
- Multi-site trunking
Security
How it is hardened
- Firmware lifecycle policy
- IP auto-defence and geo restriction
- Encrypted remote client access
Editions & pricing
Yeastar PBX editions and vendor pricing
Vendor list prices for the editions we deploy. Deployment, migration, hardening and support are quoted separately by Techno Trader PK — they are never bundled into these figures.
| Edition | Licensed by | Vendor list price |
|---|---|---|
| P-Series appliance licenceAppliance model and Enterprise/Ultimate plan determine the price. | per system | Quote only |
| P-Series Cloud | per extension / month | Quote only |
Prices are checked against the vendor's published price list. Last verified 9 Sept 2026. Vendor list prices exclude tax and can change without notice. Vendor pricing page
Architecture
Yeastar PBX deployment architecture
An on-premises appliance sized around interfaces and concurrent calls, with remote users terminated through an authenticated path rather than a published SIP port.
01 · Lines
SIP trunksFXO / PRI / BRIGSM modulePhysical interfaces retained where legacy lines or fallback dialling are contractual requirements.
02 · Border
FirewallIP auto-defenceGeo restrictionManagement and SIP ports restricted; blocklists and login throttling enabled from day one.
03 · Yeastar appliance
Extensions & groupsIVR / queuesRecording storageLinkus serverFirmware level fixed and scheduled; configuration backed up before every change.
04 · Clients
IP phonesLinkus desktopLinkus mobileAuto-provisioning on the LAN; remote clients over the encrypted Linkus path or VPN.
FAQ
Yeastar PBX questions we are asked
- Why choose an appliance over a software PBX?
- When analog, BRI or PRI lines must terminate on site, when there is no virtualization estate to host a PBX, or when a vendor-supported firmware path is required.
- How many concurrent calls can we run?
- That is set by the model and licence, not by extension count. Sizing starts from measured peak concurrency plus headroom, then the model is chosen to match.
- Can remote staff use it safely?
- Yes — through the encrypted remote client service or a VPN. The SIP port is never published directly to the internet.
Related
Other voip platforms
Yeastar PBX is referenced to describe engineering capability. All trademarks and product names are the property of their respective owners; no partnership or endorsement is implied.
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