[asterisk-dev] [Bug] realtime don`t expire

[Panfilov Dmitry]

i use acount 'peer1' asterisk realtime engine update database set ip `x.x.x.x`  
next i use acount 'peer2' from same computer realtime engine update database 
and we have two records with same ip:port
next when realtime engine ask database for ip:port it have two records and use 
first record which can be wrong

my proposal update database set ip 0.0.0.0 for expired realtime peer