Polycom 1725-31402-001 manual Making and Receiving Calls

User Guide for the Polycom CX700 IP Phone

Making and Receiving Calls

Symptom	Problem	Corrective Action
There is no dial tone.	Power is not correctly applied to	Do one of the following steps:
	the Polycom CX700 IP phone.	• Check that the display is illuminated.
		• Make sure the LAN cable is inserted
		properly at the rear of the phone (try
		unplugging and re-inserting the
		cable).
		• If using in-line powering, have your
		system administrator check that the
		switch is supplying power to the
		phone.
	Dial tone is not present on one of	Do one of the following steps:
	audio paths.	• Switch between handset, headset (if
		present) or speakerphone to see if dial
		tone is present on other paths.
		• If dial tone exists on another path,
		connect a different handset or
		headset to isolate the problem.
		• Verify that the phone is logged in and
		registered with Microsoft Lync 2010
		Server.

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