FXO interface cannot identify on-hook of the remote PSTN user

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The AR with the voice package cannot identify on-hook signals of other countries. By default, the AR with the voice package can only identify on-hook signals of China.
The voice file needs to be customized at each site. Contact the service provider.

Other related questions:
Why the FXO interface cannot identify onhook signals of the remote PSTN user
Currently, the AR with the voice package cannot identify onhook signals of other countries. By default, the AR can identify only onhook signals of China. The voice file needs to be customized at each site. Contact the service provider.

What are user identifiers
User identifiers include device IDs and user IDs. A device ID is the ID of a device used by users. The devices can be a plain old telephone service (POTS) phone or a user agent device, such as IP phones and software. A user ID is a unique number assigned to a user. A user ID is the owner of a device ID, and indicates a user's identity. A user ID and a Session Initiation Protocol (SIP) server domain constitute a URL. A device ID can belong to multiple user IDs. Each user has a fixed user identifier, which is bound to a unique device ID. Usually, a user identifier is the global number or long code for the user. Users can dial long codes to call each other, which is the common dial-up mode. Internal numbers or private numbers are provided to users inside the same group, such as an enterprise, company, group organization, school, or hotel. Users in the same group can dial each other's short numbers or private numbers.

How to match FXS users with FXO users on the U1900?
To match FXS users with FXO users on the U1900, do as follows: When configuring the AT0 trunk, configure a default called number corresponding to the slot number and port number of the FXO port. This default called number can be bound to the FXO user. As a result, when a call comes in through the FXO port, the phone of the FXS user rings.

How to use PSTN interfaces of TE series endpoints
For details about how to configure the PSTN port for TE series endpoints, see the PSTN Port for TE Series Videoconferencing Endpoints.

How to configure a PSTN number for a user on the U1900 series unified gateway
To configure a PSTN number for a user on the U1900, perform the following steps: 1. Log in to the web management system of the U1900. 2. Choose User > SIP User(POTS User) and then choose Operation > Start Long Number next to the user to configure the PSTN number.

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