4
4.3.3.3. STUN Config ..................................................................................................................................32
4.3.3.4. DIAL PEER setting ........................................................................................................................33
4.3.4. Phone .................................................................................................................................... 36
4.3.4.1. DSP Config ....................................................................................................................................36
4.3.4.2. Call Service....................................................................................................................................37
4.3.4.3. Digital Map Configuration.............................................................................................................38
4.3.4.4. Phone Book ...................................................................................................................................39
4.3.5. Maintenance ......................................................................................................................... 40
4.3.5.1. Auto Provision...............................................................................................................................40
4.3.5.2. Syslog Config ................................................................................................................................41
4.3.5.3. Config Setting................................................................................................................................42
4.3.5.4. Update ............................................................................................................................................42
4.3.5.5. Account Config .............................................................................................................................43
4.3.5.6. Reboot............................................................................................................................................44
4.3.6. Security................................................................................................................................. 44
4.3.6.1. MMI Filter .......................................................................................................................................44
4.3.6.2. Firewall...........................................................................................................................................45
4.3.6.3. NAT Config ....................................................................................................................................46
4.3.6.4. VPN Config ....................................................................................................................................48
4.3.7. Logout ................................................................................................................................... 50
4.4.1. How to set via the phone’s keyboard. ............................................................................................50
4.4.2. Phone menu......................................................................................................................................51
5. APPENDIX .......................................................................................................................................... 52
5.1.1. Device specification.........................................................................................................................52
5.1.2. Voice Features..................................................................................................................................52
5.1.3. Network Features .............................................................................................................................52
5.1.4. Maintenance and Management .......................................................................................................53