Conveying textual content from interactive systems to IP clients

摘要

A system is disclosed. The system has a client device, an interactive response system, and an Internet Protocol (IP) network enabling IP communication between the client device and the interactive response system. The client device may be configured to place a call to the interactive response system via the IP network, to establish an IP telephonic communication session between the client device and the interactive response system, and to display textual content received from the interactive response system during the IP telephonic communication session. The interactive response system is configured to receive the call from the IP network, to establish the IP telephonic communication session between the client device and the interactive response system, to transmit textual content to the client device during the IP telephonic communication session.

主权项

1. A system, comprising:
a client device; an interactive response system; and an Internet Protocol (IP) network enabling IP communication between the client device and the interactive response system, wherein the client device is configured to:
place a call to the interactive response system via the IP network,establish an IP telephonic communication session between the client device and the interactive response system, anddisplay textual content received from the interactive response system during the IP telephonic communication session, and the interactive response system is configured to:
receive the call from the IP network,establish the IP telephonic communication session between the client device and the interactive response system,generate a Session Initiation Protocol (SIP) MESSAGE( ) communication containing the textual content, the textual content including one or more interactive menu choices,transmit the SIP MESSAGE( ) communication containing the textual content including one or more interactive menu choices to the client device during the call and over the IP telephonic communication session, wherein the SIP MESSAGE( ) communication is sent from the interactive response system to the client device immediately after (a) the client device generates and sends an INVITE( ) message having an address identifying an enterprise that contains the interactive response system, (b) a SIP proxy server receives the INVITE( ) message, sends a message to the client device indicating that the INVITE( ) message is being processed, and also forwards the INVITE( ) message to an SIP redirect server, (c) the SIP redirect server, after receiving the INVITE( ) message, sends to the SIP proxy server a MOVED TEMPORARILY( ) message containing, among other thing, the address of the enterprise that contains the interactive response system, (d) the SIP proxy server, after receiving the MOVED TEMPORARILY( ) message, forwards the INVITE( ) message to the address of the enterprise that contains the interactive response system, (e) the interactive response system, after receiving the INVITE( ) message, sends a TRYING( ) message or a RINGING( ) message to the SIP proxy server to indicate to the SIP proxy server that the interactive response system is processing the INVITE( ) message, (f) the interactive response system, after the processing is completed, sends an OK( ) message to the SIP proxy server to indicate that processing of the INVITE( ) message is complete, (g) the SIP proxy server, after receiving the OK( ) message, sends an ACK( ) message to the interactive response system to acknowledge completion of the processing, (h) the SIP proxy server, also after receiving the OK( ) message, sends another OK( ) message to the client device to indicate to the client device that processing of the INVITE( ) message has been completed, and (i) the client device, after receiving the other OK( ) message, sends another ACK( ) message to the SIP proxy server acknowledging the processing of the INVITE( ) message, andprocess the user response to the textual content without waiting for completion of play of the corresponding audio content,wherein the textual content including one or more interactive menu choices is specified in a content header contained in a body of the SIP MESSAGE( ) communication.