Call park method and system based on session initiation protocol (SIP)
A parking and call request technology, applied in the field of communication, can solve problems such as complex user operations, easy conflicts, and lack of unified standards, and achieve the effect of simplifying user operations
Active Publication Date: 2014-07-09
广州广哈通信股份有限公司
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Problems solved by technology
[0005]In the field of traditional circuit switching, Call Park call parking has been widely supported and applied, but in the stage of soft switching, especially in the field of SIP communication, how to realize Call Park function, there has been no uniform standard
Existing implementations of Call Park call parking are either implemented internally by a certain manufacturer through private signaling, or require the phone to support a series of special functions (such as the combination of REFER+NOTIFY methods), and the compatibility is poor
Moreover, in the existing implementations, the extension number of the call park must be specified, the user operation is complicated, and conflicts are likely to occur
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[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0033] see figure 1 , is a schematic structural diagram of a SIP-based call park system provided in Embodiment 1 of the present invention.
[0034] The SIP-based call park system provided in this embodiment includes a softswitch server, a park server and multiple phones (including a first phone 1001 , a second phone 1002 and a third phone 1003 ). The telephone set, the soft switch server and the IP network are the basic environment of the soft switch communication...
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The invention discloses a method and system for call parking based on SIP. The method includes: after the second phone answers the call initiated by the first phone, it sends a second call request message containing a call park access code to a soft switch server The softswitch server routes the second call request message to the park server according to the call park access code; after the park server receives the second call request message, it queries the park extension configuration table to obtain A current state is an idle resident extension number, and returns a second response message containing the resident extension number to the softswitch server, and the softswitch server forwards the second response message to the second phone; the first phone Disconnect the call connection with the second phone, and establish a new call connection with the parked extension. The invention is a call parking solution with wide compatibility and simplifies the call parking operation.
Description
technical field [0001] The present invention relates to the field of communication technology, in particular to a SIP (Session Initiation Protocol, Session Initiation Protocol)-based call parking method and system. Background technique [0002] Call Park (Call Park) is a feature of the telephone system, which is used to hold a call on a certain phone, and then continue the call on another phone. Normally, using the Call Park function requires pressing a key with a pre-assigned function, or pressing a specific key sequence to activate the function. After pressing the Call Park button, the current call is transferred to another idle extension and put on hold immediately. At this time, the phone system temporarily assigns an extension number to the held incoming call, and the phone system will then display the extension number to the user so that the call can be resumed later. Telephone systems usually provide an option for people to make an announcement through a public addr...
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IPC IPC(8): H04L29/06H04M3/42H04M3/54
Inventor 高立扬张小莹聂永权
Owner 广州广哈通信股份有限公司