str. 4
7.8. Call Park ……………………………………………………………………………………….….42
7.9. Paging……………………………………………………………………………………………….42
7.10. DTMF ............................................................................................... 43
7.11. Prefix ............................................................................................... 43
7.12. Action URL ........................................................................................ 44
7.13. Keybord Layout ................................................................................ 44
7.14. Keypad Lock ..................................................................................... 44
8. Management and Upgrade .......................................................................... 45
8.1. Start ................................................................................................... 45
8.2. Factory Reset ..................................................................................... 45
8.3. Software update ................................................................................. 46
8.4. Remote Phonebook ............................................................................ 47
8.5. System Log ......................................................................................... 48
8.6. TLS Certyficates ................................................................................. 48
9. Troubleshooting ........................................................................................... 49
9.1. Why is the phone LCD screen blank? .................................................. 49
9.2. Why does the phone display "Network Unavailable"? ....................... 49
9.3. Why can’t I get a dial tone? ................................................................ 49
10. Annex ......................................................................................................... 50
10.1. Technical Specification ...................................................................... 50
10.2. Voice Parameters .............................................................................. 50
10.3. Network Parameters ......................................................................... 50