Objective
The objective of this document is to explain FXS/DID Configuration on UC500 Series. The 4-port FXS/DID VIC can support up to 4 FXS ports for directly connected phones and fax machines or it can support up to four directly-inward-dial (DID) analog trunks ports. FXS is the port which delivers analog line to the subscriber to deliver dial tone and ring voltage. FXO is the port that receivers the analog line from the central office. DID is a feature offered by telephone companies to assign a personal number for each employee without requiring separate wire for each user.
Applicable Devices
• UC500 Series
Software Version
• v8.6(0) [UC500 Series]
• v3.2(1) [Cisco Configuration Assistant]
DID Configuration
The next steps will guide you through the configuration of DID analog trunks on the UC500 Series.
Step 1. Log in to the Cisco Configuration Assistant and choose Telephony > Ports and Trunks > PSTN Trunks. The PSTN Trunks window opens.
Step 2. Choose FXS/DID tab to configure FXS/DID VIC ports.
Step 3. From the list, choose a FXS/DID interface to configure.
Step 4. In the Mode drop-down list, choose DID.
Step 5. In the Signal drop-down list, choose one of the following:
• Delay Dial — The originating end seizes the line and waits 20 ms to see if the far end is on-hook. If the far end is on-hook, then the originating end outpulses digits. If the far end is off-hook, then the originating end waits until the far end is on-hook before outpulsing digits.
• Immediate — The originating end seizes the line by going off-hook and, without waiting for a response, it begins to outpulse digits.
• Wink Start — The originating end seizes the line by going off-hook. It waits for acknowledgement from the other end before outpulsing digits. This is done in order to detect a malfunctioning trunk and allow the connection to send a re-order tone to the calling parity.
Note: The Caller ID, Extension, Permissions, and Block Restricted options are not available for DID configuration.
Step 6. Click Apply to save your settings.
FXS Configuration
The next steps will guide you through the configuration of a FXS trunk.
Step 1. Log in to the Cisco Configuration Assistant and choose Telephony > Ports and Trunks > PSTN Trunks. The PSTN Trunks window opens.
Step 2. Choose FXS/DID tab to configure FXS/DID VIC ports.
Step 3. From the list, choose a FXS/DID interface to configure.
Step 4. In the Mode drop-down list, choose FXS.
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Step 5. In the Signal drop-down list, choose one of the following:
• Ground Start — Allows both sides of a connection to place a call and to hang up.
• Loop Start — Only one side of a connection can hang up. This is the default setting.
Step 6. In the Caller ID field, enter an ID to be displayed for the FXS trunk.
Step 7. In the Extension field, enter the number to be displayed for the extension of the FXS trunk.
Step 8. In the Permissions drop-down list, choose one of the following:
Note: The following options follows the rules set for the outgoing plan established between the user and the service provider.
• National — With this option, the user can place national long distance calls, as well as internal and emergency numbers calls.
• Internal — With this option, the user can place calls for internal purposes and to emergency numbers.
• Local — With this option, the user can place calls to local destinations as well to internal and to emergency numbers.
• International — With this option, the user can place calls not only to international destinations, but to internal, local, national long distance, and emergency destinations as well.
• Unrestricted — With this option, the user can place calls to any destination.
• Local-Plus — With this option, besides having the option to call to local, internal, and to emergency numbers, the user can also call to additional numbers defined in the outgoing plan.
• National-Plus — With this option, besides having the option to call to national long distance, local, internal and emergency numbers, the user can also place calls to additional national numbers, defined in the outgoing plan.
Step 9. To prevent the user from calling the restricted numbers configured in the outgoing dial plan, check the Block Restricted Numbers check box. Otherwise, uncheck it.
Step 10. Click Apply to save your settings.