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User receives busy tone instead of dial tone on a VG224 analog phone gateway registered to CCM with SCCP


Core Issue

The Cisco VG224 is a Cisco IOS  high-density, 24-port gateway for analog  phones, fax machines, modems, and speaker phones within an enterprise voice  system based on Cisco CallManager. Having these devices tightly integrated with  the IP-based phone system is advantageous for increased manageability,  scalability, and cost-effectiveness.


To resolve this issue, perform these steps:

  1. Check the cabling on the ports, or try to change the cable. For more information on cabling refer to the Analog Voice RJ-21 Pin out section of Cisco Modular Access Router Cable Specifications.

  2. Verify that you have proper IP connectivity. Issue the ping command to verify that the proper IP address has been assigned to the device.

  3. Try to reload or power cycle the gateway.

  4. Check the power coming to VG224. For power and other specifications, refer to Cisco VG 224 Analog Phone Gateway.

For more information, refer to Cisco VG 224 Analog Phone Gateway Q & A .

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