The AR connects to IP phones and AT0 trunk is used. Do value-added service packages for voice services need to be configured

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The AR must work in PBX mode when the AR connects to the PSTN through the AT0 interface. After the value-added service package for voice services is configured, you need to configure CM&BEST License.

Other related questions:
Is only the value-added service package for voice service required when the AR router is connected to an IP phone through an AT0 trunk
The AR must work in PBX mode when the AR connects to an IP phone and the PSTN through the AT0 interface. After the value-added service package for voice services is configured, you need to request the license. In V200R003 and earlier versions, the CM license needs to be configured. In V200R005 and later versions, UC Express License Package and UC Express IP Quantity need to be configured.

How to configure the automatic switchboard service when the U1960 uses the AT0 trunk?
1. Set Service type to Virtual user and Call property to Automatic switchboard. Configure Trunk access yes or no based on the actual requirements. 2. When configuring the AT0 trunk, the default called number is set to the access code of the automatic switchboard configured in the preceding step.

What is the method for configuring the fax service for IP phones under the U1900?
An IP fax machine can be regarded as an IP phone. You can configure the IP fax service by referring to the IP phone configuration procedures.

How to configure and use the voice conference service
If the U1900 of V200R003 or later is used, see Configuration > Feature Guide > Voice Meeting in the U1900 product documentation .

When the IP phone under the U1911 initiates an outgoing conference call through the AT0 trunk, which AT0 trunk is used to route the call?
In the scenario where the U1900 uses the AT0 trunk for networking, for a local conference initiated on the IP phone, the corresponding dedicated line is used; for an instant conference, the line is selected in polling mode. If all AT0 lines are dedicated lines, only the outgoing call for initiating a local conference can be routed through these lines.

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