The problem we encounter is hacker can go in anytime and by whatever mean. We do need to tighten our security to limit loss. Now for me, no more IDD and all local or free calls.
Anyone has dialplan to limit number of call or control the dialing interval say not more than 2 simultaneous calls; must lapse for certain seconds before another call can be made.
Time control and simultaneous call control are of 2 different methods. The latter one can be achieved through the settings in particular extension in sip.conf or users.conf depends on where you create your extension lines (APL or GUI).
Example:
[6001](my-settings)
defaultuser = 2001
secret = very_secret_code
mailbox = 6001@default
vmsecret = 6001
dial = SIP/6001
callerid = "who_am_i" <>
;accountcode =
;callgroup = 1,3-4 ; members of groups 1,3 to 4
;pickupgroup = 1,2-4 ; member of "pickup" groups 1,2 to 4 call-limit = 2
musiconhold = default
musciclass = default
For time control method, I think we have discussed long time ago in HKEPC. We can start another one here for permanent record.
發表於 2011-9-30 10:14
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