If your Cisco IP phone is not receiving dial tone - Powered By Kayako SupportSuite

Sep 05 2010

Support Center » Knowledgebase » If your Cisco IP phone is not receiving dial tone

	If your Cisco IP phone is not receiving dial tone

Solution • Power cycle or reboot your Cisco phone by pulling out the power cord, waiting one minute, and replacing the power cord.
• Open ports or port forward 5060 for UDP service on your network router (DHCP server) to the IP address of the Cisco phone.
• From your router, deactivate Stateful Packet Inspection. Refer to the router manufacturer’s official documentation.
• Check proper functionality of all network cables and connections.
• If the green activity LED is not flashing after you connect the Ethernet cable, make sure that both the power cord and the Ethernet connection are secure.
• A busy tone indicates that the party you called is not available. Try your call again later. A fast-busy tone indicates that you dialed an invalid number.
• The DHCP server should show an incoming request from the MAC address listed on the product label or given by the voice prompt.

Article Details

Article ID:

Created On:

Nov 16 2005 01:09 AM