U-Path

This section describes the U-Path service.

Definition

The U-Path is an IP-based management platform that provides centralized management for subscribers such as hotels and corporations. The U-Path is an essential coordinator of the SoftX3000 for implementing the Centrex service. The U-Path is usually deployed on a multi-media computer equipped with the network adapter. It implements remote access and provides call transfer, subscriber management, and charging for Centrex group subscribers.

Benefits

Beneficiary	Description
Carriers	Carriers can enhance their competitive edge and strengthen their position in the market.
Subscribers	Centrex subscribers can enjoy the call control, console service, service management, and CDR management functions provided by the U-Path.

Requirements

Table 1 describes the requirements of the U-Path service.

Table 1 Requirements of the U-Path service

Item	Prerequisite
Required NE	SoftX3000.	MGW.	U-Path.
Function	The SoftX3000 is responsible for controlling the WAC service.	The MGW processes call-related signaling under the control of SoftX3000.	The U-Path provides thorough services for Centrex group subscribers.
Requirements for the license	This service requires a license.

Application Limitations

None.

Interaction with Other Services

None.

Application Scenario

This service is applicable to the NGN network.

Principle of Implementation

The following description takes the out-group call transfer function of the U-Path as an example. Assume that subscriber A is a Centrex subscriber and number B is the number of the U-Path serving subscriber A. Subscriber A wants to initiate an out-group call through the U-Path.

Figure 1 shows the message exchange in the U-Path service (out-group call transfer)

Figure 1 Message exchange in the U-Path service
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P1:

Upon detecting that the number dialed by A is a Centrex short number registered on the SHLR, the SoftX3000 sends an SRI message to the SHLR to obtain the subscriber number corresponding to the dialed short number.

P2:

The SoftX3000 connects the call to the subscriber number obtained.

Charging

Centrex subscriber A calls subscriber C out of the Centrex through the console B. After the call between subscriber C and subscriber A is established, the SoftX3000 generates two common CDRs One is for the call leg between subscriber A and subscriber B and the other is for the call leg between subscriber B and subscriber C.

Software Parameter

None.

Standards Compliance

None.

Additional Information

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