✅ 1. Access the NS700 Web Console

• Open a browser and enter the PBX IP address.
• Log in with Installer credentials.

✅ 2. Enable SIP Trunking

• Navigate to:
  Configuration → Slot → Virtual → SIP Trunk
• Assign a SIP trunk card (e.g., V-SIPGW16).

✅ 3. Configure SIP Trunk Settings

• Go to:
  Configuration → CO & Incoming → SIP Trunk → Channel
• Enter details provided by your SIP provider (Voice Host):
  • SIP Server Address: (Voice Host domain or IP)
  • Port: Usually 5060 (UDP/TCP)
  • Authentication ID / Username
  • Password
  • Domain: Same as SIP server or as per provider instructions.

✅ 4. Codec Settings

• Navigate to:
  Configuration → System → IP → Codec
• Common codecs:
  • G.711a / G.711u (for high quality)
  • G.729 (for bandwidth saving)

✅ 5. Register the Trunk

• Ensure SIP Registration is enabled.
• Check Status under:
  Maintenance → SIP Trunk → Registration Status
  It should show Registered.

✅ 6. Routing & Dial Plan

• Set up Outgoing Call Routing:
  • Configuration → ARS → Route
  • Assign SIP trunk to desired route.
• Configure Incoming DID:
  • CO & Incoming → DID Table
    Map numbers to extensions or groups.

✅ 7. Firewall & NAT

• If behind NAT, enable NAT Traversal and set Public IP in: Configuration → System → IP Settings.
• Allow SIP ports (5060) and RTP range in your firewall.

✅ 8. Test Calls

• Make an outbound call and verify audio both ways.
• Check Maintenance → Call Log for troubleshooting.