20.x Firmware
20.05 - 16.12.2020
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- changed if ISDN port is blocked, calls are rejected with cause 44 now
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- added allowing schedule of graceful activate/reboot when no calls are affected
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- added support for callgroups
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- added option max_simultaneous call for SIP groups
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- added improved network troubleshooting
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- added support for SNMPv3 UDP/TLS
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- added config option t38_ignore_offer
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- added contact_all_setting allowing to modify registration contact header
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- added monitored_sip_peer option to allow shutting down ISDN ports when SIP peer goes down
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- added improved time settings configuration, Summer/Wintertime change now configurable
- fixed issues in time settings management
- fixed issues during factory reset
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- fixed showing used ISDN channel in CDR when call was rejected directly after SETUP
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- fixed backup/restore of hostname
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- fixed not accepting bye from caller in early dialog on SIP to SIP calls
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- fixed issues with GSM table not loading
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- fixed not setting contact in validating OPTIONS packets, when validating without registration
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- fixed dnssrv request for peers configured with TLS
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- fixed GSM/LTE unicode converter
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- fixed restoring NTP host from backup
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- fixed not using configured dtmflen value, when rfc2833_passthrough=0
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- fixed memory leak when using validate without registration
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- fixed handling of an re-invite not containing SDP
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- fixed sending out rfc2833 events when dtmfmode=inband was used
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- fixed not refreshing DHCP anymore when request failed
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- fixed problem adding some network routes
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- fixed issue correctly deleting and deregistering cloud settings on factory reset
- fixed number prefixing when failover_account is used, using settings from failover account
- several GUI fixes and improvements
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- GUI allowing multiple selection and deletion of SIP groups
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- GUI fixed dialplan javascript delete issue
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- GUI added from_display and other variables to list of selectable SIP settings
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- GUI added cancel button to Full-Trace
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- GUI added additional options for managing Full-Trace
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- GUI added ajax refresh for active calls
- disabled PRACK support by default, if not explicitly enabled via experimental option enable_prack
- disabled support for SNMP traps
20.04.01 - 13.08.2020
- fixed problem resetting the GUI password
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