3CX SIP Trunking

3CX SIP Trunking

Step 1:

Create a new SIP Trunk in 3CX by going to SIP Trunks > Add SIP Trunk.

Country: Generic

Provider: Generic SIP Trunk

Main Trunk Number: (a DID you might have with us)

 

Step 2: (General Tab)

Registrar: trunking.primevox.net

 > Auto-Discovery: YES (required)

Outbound Proxy: trunking.primevox.net

 > Auto-Discovery: YES (required)

 

Type of Authentication: Register / Account Based

Authentication ID: (the SIP Username given to you by a PrimeVOX Technician)

Authentication Password: (the SIP Password given to you by a PrimeVOX Technician)

 

Step 3: (DIDs / CallerID Tabs)

CallerID/DIDs must have a Country Code. The "+" is not necessary, and not recommended. 

Ex. 1) 19726001150

 

Step 4: (Options Tab) 

Re-Register Timeout: 180 Seconds

Transport Protocol: TCP

 

Step 5: (Outbound Parameters Tab)

"Contact : User Part" = Custom Field (leave the field empty)

 

    • Related Articles

    • AT&T / DSL / U-Verse

      Required Settings: - Phones must use TCP instead of UDP - Disable SIP ALG - Disable IPv6

    • ReadyNet LTE520

      Minimum Firmware Version: v3.32 - Released in 2020 --- SIP Transport: TCP (UDP will NOT function!) --- Signal Port: 4242 Register Refresh Interval: 600 --- Outbound Server: Use any of the "New Generation, No Redundancy" A-Records in [this article]. ...

    • Non-Approved Routers and Modems

      This is an ongoing list of routers/modems known for their lack of VoIP reliability. If you would like to see a list of approved routers, please view the article called "Approved Routers / Quality of Service". Cisco RV Series These are not ...

    • Frontier / Verizon Fios

      Verizon Fios and Frontier use consumer-grade fiber optics to deliver services to their customers. Required Settings: - Disable SIP ALG (if possible). - Phones are highly recommended to use TCP instead of UDP. - If you have your own firewall, disable ...

    • Device Provisioning

      What Does "Device Provisioning" Mean? Device provisioning is the process of configuring IP phones or softphones so they can connect to your phone system with the correct settings. This includes assigning extensions, voicemail destinations, and ...