E1/T1/J1 connectivity, in both directions.
TE100 and TE200 bridge ISDN PRI and VoIP, supporting 30 or 60 concurrent calls. They connect an existing ISDN PBX to a VoIP network, or bring remaining E1/T1 trunks into a VoIP-only system.
What it does on a transitional site.
A PRI gateway is typically holding a large-site service together while the phone system changes, or preserving dialling behaviour the site is not ready to give up.
- Up to 60 simultaneous VoIP to ISDN PRI calls
- Software-configurable E1/T1/J1 ports with programmable TE/NT modes
- Connects an existing ISDN PBX to VoIP while retaining dialling habits
- Brings E1/T1 trunks into a VoIP-only system to route calls to ISDN
- Connects multiple PABX systems at different sites over IP networks
- Compatible with a range of ISDN PBX, IP-PBX and softswitch platforms
- Web GUI for installation and management
Check the service before the hardware.
ISDN PRI services in Australia have been progressively withdrawn. Confirm the service, the carrier position and the porting plan before a PRI gateway is written into the design.
Get the PRI position confirmed before the cutover is scheduled.
Bring TeraFi the carrier detail and the concurrent call requirement. We will confirm whether the gateway belongs in the design.
Fact-checked on 22 September 2026 against the Yeastar TE Series product description and datasheet. Gateways are a transition and connectivity component, not an end state. Treat legacy connectivity as a documented dependency with an owner and an exit plan. Carrier ISDN availability must be confirmed independently for each site.