"Hard to find" full descr iption of ContactID protocol from Ademco used by many home security devices to send messages to CMS (Central Monitoring Station) about security events. Has full technical descr iption and can be used to easy make CMS c

支持大多CMS的PING地址！反正好像还不错！比较全！-Support most of the CMS PING address! Anyway, seems pretty good! Comparison of the whole!