Firmware:

SIP Ring Switch 4xOut

Model 57753

Current firmware
Date	Changes and comments	Revision
September 14, 2023	Outputs Pulse Mode - When entering a negative pulse duration the output performs a blink pattern while it is active	1.68 ZIP download

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Older firmware
Date	Changes and comments	Revision
July 10, 2023	Registration with USER ID and password possible for each extension Configuration of a second telephone system for redundant systems possible.	1.67 on request
March 27, 2023	TCP/IP stack - MTU up to max. 1500 possible Actions - Host name for HTTP requests in the head corrected	1.66 on request
February 2, 2023	Homepage - With showing without menu tree, login as User is also possible TLS/SSL - SNI support (Server Name Indication) activated	1.65 on request
December 12, 2022	IP stack - MTU settable IP stack - Improved processing of fragmented UDP packets System start - When boot error occurs update mode is activated for system restore SIP - Use of * in user list improved SIP - Detection of the registration interval for Swyx systems added	1.64 on request
October 28, 2022	DHCP - Processing of the option flags expanded SIP - Processing of fragmented UDP packets improved System start - Configuration initialization optimized	1.63 on request
September 27, 2022	SIP - Problems with manual adding of new subscribers fixed SIP - Register timeout given by the VoIP system is used GUI - Minor optimizations System - Config Upload optimized and accelerated	1.62 on request
August 31, 2022	SIP - Problems with manual adding of new subscribers fixed GUI - Minor optimizations System - Config Upload optimized and accelerated Please use the newest included version of Wutility for the update.	1.60 on request

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