This is the current API V1 documentation. Explore our API V2 beta if you’d like to test new features.

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SIP Trunking Configuration Guidessip-trunking-configuration-guides

The following Configuration Guides are intended to help you connect your SIP Infrastructure (IP-PBX, SBC, etc) to a Telnyx Elastic SIP Trunk.

Be aware, due to the large number of versions, variations, add-ons, and options for many of these systems, the settings you see may differ from those shown in our Configuration Guides. As such, these documents are intended as general guidelines, rather than configuration templates. There is an assumption of familiarity with your network and SIP infrastructure, and how they work.

Telnyx cannot provide direct support for third-party products; you should contact the manufacturer for your PBX/SBC for assistance in configuring such products.

Vendor Version Type Qualified for Secure Trunking
3CX v16 IP-PBX Yes
3CX v15 IP-PBX Yes
3CX v14 IP-PBX Yes
Asterisk v16 IP-PBX Yes
FreePBX v14 IP-PBX Yes
FreePBX v13 IP-PBX Yes
FreePBX v13 PJSIP IP-PBX Yes
Elastix 5 IP-PBX Yes
Elastix 4 IP-PBX Yes
Zoiper 5 Softphone Yes
Zoiper 3 Softphone Yes
FusionPBX 4.4 IP-PBX Yes
Yealink T Series IP-Phone Yes
X-Lite - Softphone Yes
Vodia - IP-PBX Yes
Thirdlane - IP-PBX Yes
Grandstream - IP-PBX Yes
Linphone - Softphone Yes
Vicidial - IP-PBX Yes