Post Answer Call Redirection via VoIP Gateway
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Solution Overview
Problem
Hybrid communication systems face increased network complexity and resource usage due to the need for signaling and processing between circuit-based and IP-based communication systems, particularly in handling call requests and providing multimedia services.
Innovation Solution
A method is introduced that processes call requests in a circuit-based system, senses predetermined attributes, and communicates them to an IP-based system to configure multimedia services, forming Real-Time Transport Protocol streams between devices, and using a media server to mix streams for post-answer call redirection and teleconferencing, thereby reducing resource requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If call requests are processed in a hybrid communication system with signaling and processing between circuit-based and IP-based systems, then multimedia services can be provided, but network complexity and resource usage increase
Solution Approach 1:
The system is divided into distinct functional modules: a circuit-based portion for call setup and control, an IP-based portion for multimedia service delivery, and a gateway for coordination. This segmentation allows each portion to operate independently with specialized functions, reducing overall system complexity while maintaining multimedia capability.
Solution Approach 2:
A gateway acts as an intermediary between the circuit-based and IP-based portions of the system. It translates signaling protocols and coordinates resource allocation, enabling seamless interaction between the two different network architectures without requiring full integration, thus reducing complexity.
2Adaptability or versatility
If network resources are transported between elements of the hybrid communication system for processing call requests, then feature processing can be performed, but resource usage and network complexity increase
Solution Approach 1:
Feature processing capabilities are extracted from the core network elements and implemented as separate application servers in the IP-based portion. This allows feature processing to occur independently without requiring continuous resource transport between circuit-based and IP-based elements, reducing network resource consumption.
Solution Approach 2:
The IP-based portion of the system independently handles multimedia service processing and feature implementation using local resources. Application servers and media servers in the IP-based portion serve themselves without requiring constant resource allocation from the circuit-based portion, reducing overall network resource usage.
3Adaptability or versatility
If Real-Time Transport Protocol streams are formed through an application server for post-answer call redirection, then call redirection capability is provided, but system resource requirements increase
Solution Approach 1:
The system pre-establishes Real-Time Transport Protocol streams between the application server and communication devices during the initial call setup phase. This preliminary action ensures that resources are allocated efficiently and that call redirection can occur rapidly without requiring additional resource allocation at the moment of redirection, thereby reducing peak system resource requirements.
Data Source
AI summary
A method is provided for forming a multi-media communication path between at least first, second and third communication devices coupled to a multi-media provider system during post answer call redirecting and/or teleconferencing. The method includes receiving and processing a first call request at a circuit-based portion of the multi-media provider system for forming a first communication link between the first and second communication devices. Thereafter, predetermined attributes of the first communication link may be sent to an IP-based portion of the multi-media provider system for configuring the IP-based portion of the multi-media provider system to process a subsequent request to execute post answer call redirecting and/or teleconferencing. Upon detecting the request to execute the post answer call redirecting and/or teleconferencing in the first communication link, the IP-based portion of the multi-media provider systems responds by forming the multi-media communication path between at least first, second and third communication devices.