v2.3.0-8-DGW-L20x-normal-idc-v21-squashfs-combined-efi-65a9a851.img.gz *Fixed system hang issue when unloading the DAHDI driver on DGW-L304. *Resolved issue where Channel 1 on each E1 failed to place outbound calls when using R2 group calling during pilot testing. *Fixed system instability caused by OOM (Out of Memory) killer on ASI platforms. *Resolved RTC battery time synchronization failure on DTU-30X. *Fixed audio recording failure on the T1 RX direction for DGW-L304. *Fixed issue where DGW-300X failed to maintain state upon reboot or power loss under Failover Bypass mode. *Added contextual help documentation for Failover mode on DGW-300X. *Fixed issue where Bypass state was lost after reboot, upgrade, or power outage under Manual Bypass Off mode. *Resolved failure to trigger Bypass mode switching during DGW-300X firmware upgrades. *Fixed poor echo cancellation (EC) performance on DGW during high-concurrency call volumes. *Resolved issue where ALM LEDs on main controller and module boards turned solid red after upgrading S1224 firmware. *Fixed audio crosstalk caused by STUN probing multiplexing onto RTP ports. *Resolved performance bottleneck on MTU v2.0 8E1 failing to reach full 248-channel capacity with SS7 + EC. *Corrected dialplan logic errors when failing over to secondary backup lines on digital interfaces. *Mitigated OIAD system security vulnerabilities. *Added redundant power supply status display for DGW-3001/3002/3004. *Optimized port and timeslot status monitoring on OIAD digital gateways. *Adapted application software for MTU v2.0 platform. *Added smart 2M link shutdown feature on aarch64 digital devices. *Implemented automatic SIP 503 response to servers when E1 links are down. *Enabled automatic SIP unregistration upon E1 link failure to alert the SIP peer. *Added option for pre-echo cancellation recording in port audio recording. *Released dedicated system firmware for Uscale UTG2910 (a DGW-300X variant). *Adapted BSP for DTU-302/304. *Adapted BSP for DGW-3001/3002/3004. *Modified download and upload filenames for auto-provisioning. *Linked TR-069 configuration parameters directly with STUN settings. *Added smart 2M link shutdown feature to ETU boards. *Added Turkish language option to OIAD firmware. *Added STUN protocol support for TR-069. *Enhanced invalid input validation for basic settings on OIAD devices. *Optimized `adt-g168` echo cancellation performance on aarch64 architectures. *Enabled active chassis ID reading on localized MTU/ASI/OSU boards. *Simplified DNS SRV configuration page and logic. *Added TDM-to-TDM (Tel-to-Tel) direct routing feature. *Added Web login security policies, including login lockout duration. *Fixed "no such instance" errors on several SNMP OIDs for digital gateways. *Optimized jitter buffer support on the SIP side and buffer handling on the DAHDI side. *Configured E1 gateway to return `603 Declined` to the caller when IP-to-IP destination times out. *Added configurable SLC (Signaling Link Code) options in SS7 settings per Nokia specifications. *Corrected CDR log type to reflect IP-to-SS7 instead of SIP-to-SIP when rejected by the peer. v2.3.0-5-DGW-L20x-normal-idc-v21-squashfs-combined-efi-b9bd5c8c.img.gz *Fixed an issue where unloading the DAHDI driver on DGW-L304 could hang *Fixed an issue where R2 group calls could not be placed properly from channel 1 of each E1 *Fixed an OOM-killer issue on ASI *Fixed an issue where the RTC battery time on DTU-30X was not synchronized *Fixed an issue where audio could not be recorded in the T1 RX direction on DGW-L304 *Fixed an issue where DGW-300X did not keep its state after reboot or power loss in Failover Bypass mode *Fixed an issue where Bypass state was not retained after reboot, upgrade, or power loss in Manual Bypass Off mode *Fixed an issue where DGW-300X did not switch to Bypass during upgrade *Fixed OIAD system vulnerabilities *Adapted OIAD for DTU-302/304 *Adapted OIAD for DGW-3001/3002/3004 *Updated download and upload names in automatic deployment *Added IP acquisition logic for ETU/ASI/OTU boards *Required TR-069 to be associated with STUN parameters *Added intelligent 2M cut-off function for ETU boards *Added Turkish language option *Added STUN support for TR-069 *Added redundant power supply status display for DGW-3001/3002/3004 *Added help information for DGW-300X Failover mode *Added tel-to-tel functionality *Optimized invalid input validation for basic configuration on OIAD devices *Optimized ADT-G168 EC on AArch64 *Improved DGW EC handling performance under high-volume calls *Simplified the DNSSRV configuration page and logic *Optimized digital gateway port and timeslot status display in OIAD v2.3.0-2-DGW-L20x-normal-idc-v21-squashfs-combined-efi-2a2e8c72.img.gz *Added BSP support for DTU-302/304 *Added BSP support for DGW-3001/3002/3004 *Added OIAD firmware support for DTU-302/304 *Added OIAD firmware support for DGW-300x series *Added Turkish language option to OIAD firmware *Fixed DTMF transmission issue on MAG1000 *Fixed system hang when unloading the DAHDI driver on DGW-L304 *Fixed outgoing call failure on channel 1 of each E1 during R2 group calling *Resolved OOM-killer trigger issue on ASI platform *Fixed missing audio recording on T1 RX direction for DGW-L304 *Fixed issue where DGW-300x failed to retain Failover Bypass state after reboot or power loss *Fixed missing help information for Failover mode on DGW-300x *Fixed issue where Bypass state was not preserved in Manual Bypass Off mode after reboot, firmware upgrade, or power loss *Fixed failure to switch to Bypass mode during DGW-300x firmware upgrade *Simplified DNSSRV configuration UI and underlying logic *Added Tel-to-Tel direct calling feature v2.3.0-DGW-L20x-normal-idc-v21-squashfs-combined-efi-62472637.img.gz * Fixed RED Alarm issue when DTU-301 connects to T1/E1 lines * Fixed incorrect time issue on HB1981 Analog and E1 modules * Fixed issue where all E1/T1 gateways defaulted to HardHDLC mode * Fixed system memory shortage when SS7 signaling is configured on digital gateway ports * Fixed issue where TR-069 web default refresh rate was too fast, preventing normal editing * Fixed issue where VOIP logging did not take effect in certain scenarios when SIP or PRI signaling was enabled * Fixed system hang issue when uninstalling DAHDI driver on DGW-L304 * Upgraded check_input2 for the ICVP project * Improved compatibility by returning 200 OK for all qualify options from the server * Improved log management system * Improved SRV record descriptions * Improved trunk creation behavior in single-port mode * Improved firmware binaries for L304/L302 * General usability improvements across multiple interfaces * Enhanced page annotations and adjusted API parameter descriptions for identify_prefix in trunk configuration * Optimized display of login page for OEM styles blue_right and blue_center * Default call status set to “All” when enabling CDR * Optimized interaction between SIP compatibility mode and authentication prefix parameters * Added hardware code field in firmware information section on the system information page * Added basic STUN functionality * Added port status monitoring for DGW digital gateways * Added local time synchronization feature * Added R2 log collection feature in log management * Added support for setting default IP by slot number in DTU-301 module OIAD firmware * Added user-friendly prompts for network management access options * Added support for channel-based grouping in Digital R2 routing v2.2.9-4-DGW-L20x-normal-idc-v21-squashfs-combined-efi-ad0dbaf4.img.gz * 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-DGW-L20x-normal-idc-v21-squashfs-combined-efi-c7b77cac.img.gz *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 v2.2.7-DGW-L20x-normal-idc-v21-squashfs-combined-efi-5c2c1093.img.gz *Added upnp function *Added SoftEther VPN *Added NAI related parameters *Added ss7 related parameters *Added TLS1.3 *Added mtu option setting in WAN and MGT *Fixed the problem that wireshark can't parse signaling ss7 packet correctly *Fixed the problem that the maxchannels parameter in DGW OEM is not used correctly *Fixed the problem that customer failed to test fax at TM *Fixed the problem that trunk Status page registration status is not correct. *Fixed the problem that /etc/config/network exception occurs after upgrading to the latest compiled version. *Fixed the problem that log management_support log page save unprompted *Fixed the problem that the firmware reported “exceeding 30M upload file limit” *Fixed the problem that the /usr/sbin/odhcpd process reports an error in bridge network mode with dual NICs *Fixed the problem that the firmware download via server fails on some HTTPS servers *Upgraded system related sys_* class to check_input2 check *Optimized ODG UPnP page *Optimized the function that T1 to E1 switch to HDB3 encoding by default *Optimized the function that initialization of network information is changed to read json to deal with differential, including API interface reading.