Parallel VoIP Call Setup Reducing International Connection Delays
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Solution Overview
Problem
International calls via public switched telephone networks are often expensive and involve significant call setup delays, which can lead users to abandon calls or experience connectivity issues.
Innovation Solution
A method and system where a service provider initiates the establishment of a communication channel with a second communication device in a second network concurrently with the first communication device's call setup, using a supplementary channel like the Internet to alert the service provider of the intention to call, thereby reducing the total time for establishing the communication channel and lowering call setup delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional sequential call establishment is used, then call connection is achieved, but call setup delay increases significantly
Solution Approach 1:
The patent applies preliminary action by initiating the establishment of the second communication channel (from communication provider to second communication device) before the first communication channel is fully established. The service provider receives an indication of calling intention and triggers the communication provider to start setting up the second channel in advance, so that when the first channel is ready, the second channel is already established or nearly ready, significantly reducing the overall call setup delay.
2Loss of time
If parallel channel establishment is implemented, then call setup delay is reduced, but system complexity increases
Solution Approach 1:
The patent uses the service provider as an intermediary that coordinates between the first communication device and the communication provider. The service provider receives the calling intention indication, triggers the parallel establishment process, and manages the coordination between different communication channels, thereby simplifying the overall system architecture while enabling complex parallel operations.
3Ease of operation
If international calling via PSTN is used, then direct connection is achieved, but calling cost increases significantly
Solution Approach 1:
The patent segments the international call into two separate local communication channels: one from the first communication device to the communication provider, and another from the communication provider to the second communication device. Both channels are local calls that avoid expensive international routing through PSTN, thereby reducing calling costs while maintaining connection stability through the coordinated parallel establishment mechanism.
Data Source
AI summary
A method for establishing communication between a first communication device (110) of a first communication network (180) and a second communication device (120a, 120b) of a second communication network (160) is disclosed. In one embodiment, a service provider (130) receives a message indicative of an intention of the first device to call the second device. A communication provider (140) in communication with the service provider establishes a communication channel with the second device via the second network based on the message received at the service provider and connects the communication channel established between the communication provider and the second device with another communication channel established in response to an incoming call from the first device to the communication provider via the first network. The establishment of the communication channel between the communication provider and the second device is initiated before establishment of the other communication channel is completed.