v2.2.8-DGW-L302-304-normal-idc-v30-squashfs-sysupgrade-5ba9490e.bin	
		*Added offline escape functionality
		*Added TUP support for DGW
		*Added login-free functionality for DGW digital gateway
		*Added password format hints on the password change interface
		*Adapted DGW-2001
		*Adapted DGW-L302
		*Adapted DTU-301 hardware for OIAD firmware
		*Fixed CDR query issue for ETU digital gateway
		*Fixed audio stuttering in ODG T1 mode
		*Fixed SS7 channel recording issue where there was no audio in both directions 
		*Fixed the problem the issue where Certificate 2 became invalid after being filled and saved in ODG Security Settings
		*Fixed inaccurate English terminology on the E1 card interface
		*Fixed constant error 22 reports with the new E1 firmware
		*Fixed abnormal E1 light blinking on the digital gateway
		*Fixed DGW digital gateway PRI signaling dchannel selection issue causing connection failure
		*Fixed SIP registration rejection issue caused by some servers treating registrations with different line parameters as new
		*Fixed English translation errors in the digital gateway interface
		*Fixed the issue where clicking 'disable' failed to save after enabling OpenVPN
		*Fixed abnormal dependency relationships and naming in the ovapp/ software packages
		*Optimized the legend and English description on the Digital Trunk port status page
		*Optimized gain performance for various signaling types
		*Optimized the call route configuration editing function in the DGW digital gateway template
		*Optimized the description for modifying the Line Region value for both digital and analog lines
		*Optimized translations for three areas in non-English languages
		*Optimized registration status display for the digital gateway
		*Enabled the icvp-emt plugin package to support updating OEM model2