Polycom 1725-31402-001 manual Access to Screens and Systems, To Updating Configuration on

User Guide for the Polycom CX700 IP Phone

Access to Screens and Systems

Symptom	Problem	Corrective Action
There is no response from key	The Polycom CX700 IP phone is	Do one of the following steps:
presses.	not in active state.	• Press the keys more slowly.
		• Check with the system administrator
		to see whether or not the key has
		been mapped to a different function or
		disabled.
		• Make a call to the phone to check for
		inbound call display and ringing as
		normal. If successful, try to press
		feature keys within the call to access
		the Menu, for example.
		• Reboot the phone to attempt
		re-registration to the call server (refer
		to Updating Configuration on page
		4-17).
The display shows “Cannot	The LAN cable is not properly	Do one of the following steps:
contact the server...” or “Cannot	connected.	• Check termination at the switch or hub
acquire IP address”.
		(furthest end of the cable from the
		phone).
		• Check that the switch or hub is
		operational (flashing link/status lights)
		or contact your system administrator.
		• Reboot the phone to attempt
		re-registration to the call server (refer
		to Updating Configuration on page
		4-17).
I cannot sign-in to the Polycom	The Polycom CX700 IP phone is	Do one of the following steps:
CX700 IP phone. I see the	not recognized by the server.	• Validate your domain name is correct.
“Cannot connect to server or
		• Ensure DHCP is configured to provide
server name is incorrect" error.
		DNS address as part of DHCP
		response.
		• Ensure DNS has SRV records for SIP
		service.
		• Ensure SIP server is reachable from
		the Polycom CX700 LAN.
I cannot sign-in to the Polycom	The Polycom CX700 IP phone is	Do one of the following steps:
CX700 IP phone. I see the	not recognized by the server’s	• Ensure either time.windows.com is
"Cannot validate server	certificate.
		accessible or NTP is configured with
certificate" error.
		appropriate SRV records created in
		DNS.
		• Ensure PKI enrollment objects have
		been created on AD to point to CA or
		CA delegate.

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