Hello!
Have idea..I think we all use router os netwatch for monitoring our host,and use sms notifications but when lot of hosts goes down there is lot of sms.. 
..I have idea: create script who checks all records in /tool netwatch and put comments for down hosts in tempoary masive,then logs conntent of this masive and send one sms message with listing of all down hosts..
But there is one smal problem - i dont have scripting skill to realize this 
,need scripting guru help..