Remarks:
1. Call Origination refers to a call initiated from the PSTN or cell phone network is terminated using VoIP.
2. Call Termination refers to a call initiated as a VoIP call is terminated using PSTN or cell phone network.
3. As shown in the network topology diagram, a VoIP Service Provider is using GoIPs as call origination and termination devices.
- A call dialed to a GoIP (right hand side) via GSM is first routed via VoIP and then terminated via a VoIP end point or VoIP Service Provider.
- A VoIP call originated from the left hand side is routed to a GoIP on the right hand side and then is dialed out as a GSM call.