Avaya 1692 IP - page 29

1692 IP Conference Phone User’s Guide Nov 2009 29

Safety and Compliance (continued)

New Zealand Telepermit (continued)

Echo Cancellation

Echo cancellers are not normally required in the Telecom PSTN because geographic delays

are acceptable where CPE return loss is maintained within Telepermit limits. However, those

private networks making use of Voice over IP technology are required to provide echo

cancellation for all voice calls. The combined effect of audio / VoIP conversion delay and IP

routing delay can cause the echo cancellation time of 64 mS to be required.

Contents

Main Page Contents Page About This Guide 6 Document Organization Conventions Used Typographic Conventions Related Documents Page Page Page Page Extension Microphones Chapter 2: Using Your Avaya 1692 IP Conference Phone General Notes on Use of the 1692 IP Conference Phone Making Calls Receiving Calls Ending Calls Call Handling Features Setting Up Conferences Holding Calls Muting Calls Transferring Calls 16 Dropping Calls Changing the Volume Server Administered Features Page Chapter 3: Avaya 1692 IP Conference Phone Options Accessing the Main Menu Updating the Ring Tone 20 Setting the Display Contrast Accessing System Information Page Page Chapter 4: Managing and Troubleshooting Your Avaya 1692 IP Conference Phone Interpreting Ringer Tones Basic Troubleshooting Chart Resetting and Power Cycling the 1692 IP Conference Phone Page Chapter 5: Safety Notices Page Page Page Index A C D E