Chapter 1 0 Troubleshooting; Problems; No Dial Tone Or Cannot Complete Call - Cisco 7975G Software Manual

Troubleshooting
This section provides troubleshooting information for your Cisco Unified IP Phone.
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Problems

This section provides information to help you troubleshoot general problems with your phone. For more
information, contect your system administrator.

No Dial Tone or Cannot Complete Call

Problem
You cannot hear a dial tone or complete a call.
Cause
One or more of the following factors might apply:
• You are not connected to Extension Mobility service.
• The system requires a Client Matter Code (CMC) or Forced Authorization Code (FAC) after dialing a
• Your phone has time-of-day restrictions that prevent you from using some features during certain hours
Solution
Try the following:
• Log into the Extension Mobility service.
Problems, page 103
Phone Troubleshooting Data, page 106
Quality Reporting Tool, page 107
number. (SCCP phones only.)
of the day.
Cisco Unified IP Phone 7975G, 7971G-GE, 7970G, 7965G, and 7945G User Guide for Cisco Unified Communications
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C H A P T E R
Manager 9.0 (SCCP and SIP)
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