v2.2.9-4-DTU-301-normal-idc-v11-squashfs-sdcard-ad0dbaf4.img	
		* Fixed RED Alarm issue on DTU-301 when connecting to T1/E1 lines
		* Fixed time issue on HB1981 Analog and E1 modules
		* Fixed memory shortage issue when setting SS7 signaling on digital gateway device ports
		* Fixed TR069 web default configuration refresh issue, preventing normal editing
		* Fixed DTMF sending issue on MAG1000 for Hong Kong customer
		* Fixed SIP protocol and PRI signaling not working in certain scenarios in log management
		* Fixed issue with single-port trunk in single port mode
		* Improved routing by Channel grouping for Digital R2
		* Improved log management system
		* Improved firmware binary files for L304/302
		* Improved UI usability with various interface enhancements
		* Implemented full compatibility for OIAD server-side to return 200 on qualify option
		* Upgraded `check_input2` for ICVP project
		* Enhanced trunk configuration page comments and adjusted interface parameter descriptions
		* Optimized login page display for OEM styles `blue_right` and `blue_center`
		* Optimized SRV record description
		* Optimized interaction between SIP compatibility mode and authentication prefix parameters
		* Supported setting default IP by slot number for DTU-301 module's OIAD firmware
		* Set CDR default call status to "All" on enable
		* Added DGW (Digital Gateway) port status functionality
		* Added local time synchronization feature
		* Added friendly prompt information for network management access options

v2.2.9-DTU-301-normal-idc-v11-squashfs-sdcard-c7b77cac.img	
		*Added failover feature
		*Added OIAD FXO single SIP/multiple SIP mixed binding with Port +group
		*Added support that local DNS SRV resolution implementation for single server registration
		*Added digital PRI support for routing by channel group
		*Added support that SIP setting compatibility mode identity_mode associated modification
		*Added support for tel protocol header of UAC
		*Added RFA light support for SS7
		*Added handling for registration returning 403 and other failures
		*Added Japanese support
		*Fixed the problem of insufficient memory resource 
		*Fixed the problem that web template configuration for quality authentication has opposite effect to actual result
		*Fixed the problem that analog phone gets incorrect time 
		*Fixed the problem that unable to register successfully after registration count reaches server max_contacts value
		*Fixed the problem that /etc/config/network exception occurs after upgrading to the latest compiled version.
		*Fixed the problem that wrong description of echo cancellation parameter 
		*Fixed the problem that call failure when incoming IMS line's To number does not match the registered number
		*Fixed the problem that MTU shows DAHDI status as OK even after unplugging the line
		*Optimized auto-deployment
		*Optimized CDR query list