=================================================================================
V4.0

Date:2014-0-29
=================================================================================
New features: 
1. Fax to Email 
2. IAX2 protocol 
3. enhanced auto provisioning for PhoneBook, Firmware,Ringtone. 
4. Customized Dialplan 
5. Tcpdump diagnostic tool. 
6.Automatical Call Record

Bug Fixed: 
1. Compatible backup data with different FW version. 
2. Many other bugs fixed

=================================================================================
V2.0

Date:2013-08-16
=================================================================================
*New Features:
1. New-style GUI
2. Extensible storage interface
3. Enhanced callback
4. VPN client of PPTP feature
5. Auto provision
6. Factory Reset with HW key 
7. Personal portal for call recording
8. Video support
9. Syslog support
10. Transparent call forwarding for follow me
11. Send messages by e-mail only
12. Ignore call forward on phone function in Ring Group
13. Enhanced MOH
14. FXO/FXS gain adjustment for echo
=================================================================================
V1.4.0

Date:2013-05-10
=================================================================================

Enhanced function
1. Group Pickup
2. more failover trunk for outbound rule
3. MoH/Prompt/Backup file upload
4. Date/Time Setting
5. CDR

*New Features
1. Directed Pickup
2. Call Forward
3. Static Agent for Queue
4. Authentication for outbound rule
5. CID limit for Inbound rule
6. IP Restriction
7. Blacklist
8. STUN
9. HTTPS
10. Firewall
11. Port Forward
12. DDNS
13. Storage Quota Privilege
14. Personal WEB Portal