Aastra Telecom 480I CT manual Chapter Troubleshooting

Chapter 9

Troubleshooting

About this chapter	9-1
Troubleshooting	9-2
Troubleshooting Solutions	9-6
Description	9-6
Why does my phone display “Application missing”?	9-6
Why does my phone display the “No Service” message?	9-7
Why does my phone display "Bad Encrypted Config"?	9-7
Why is my phone not receiving the TFTP IP address from the DHCP Server?	9-8
How do I set the IP phone to factory default?	9-11
How to reset a user’s password?	9-14
Appendix A
Configuration Parameters
About this appendix	A-1
Setting Parameters in Configuration Files	A-4
Operational, Basic, and Advanced Parameters	A-5
Network Settings	A-5
Password Settings	A-8
Aastra Web UI Settings	A-10
Configuration Server Settings	A-10
Type of Service (ToS)/DSCP Settings	A-17
Virtual Local Area Network (VLAN) Settings	A-18
Network Address Translation (NAT) Settings	A-21
Time Server Settings	A-23
Time and Date Settings	A-25
SIP Local Dial Plan Settings	A-32
SIP Basic, Global Settings	A-35
SIP Basic, Per-Line Settings	A-43
Advanced SIP Settings	A-53
RTP, Codec, DTMF Global Settings	A-58
DTMF Per-Line Settings	A-60
Silence Suppression Settings	A-61
Voicemail Settings	A-62

Contents

41-001129-00 Rev 09, Release 1.4.1 ix