Call4tel

TM MPLS Line Configuration with NX-32 VoIP Gateway

Configures a TM MPLS line connection using the NX-32 VoIP Gateway to connect to a 3CX server or SBC unit.

  1. WAN connects the local LAN to the 3CX server/SBC; LAN receives its IP from TM's DHCP server — make sure the default trunk is set to LAN in Settings.
  2. In the Call4tel portal (IP:5448), go to VoIP > Add New SIP Endpoint and select the TM provider.
  3. Enter the TM username and password, save, and apply the configuration; confirm the registration success message.
  4. Check VoIP > SIP Status to confirm the trunk is active.
  5. In 3CX, create a peer-to-peer trunk to the NX32 Gateway (for same-location or VPN connections).
  6. Inbound: route calls with a "+6" prefix (matching +60XXXXXXXXX), stripping the prefix before it reaches 3CX.
  7. Outbound: configure outbound rules to route calls back out through the TM trunk.