I am trying to implement a change to our Dialplan that will thwart tele-spammers that are calling us with blanked out caller ID.
The caller IDs seem to vary between originating callers when they block caller ID. I've seen the following: "anonymous" "" So I'm checking for these. However recently one company seems to be bypassing this, so what I wanted to do was implement some logic that checks for actual numbers in the caller ID. We have a couple of different SIP providers for incoming calls. Some prefix numbers with a + and others don't. But I'm logging incoming calls that are getting through our tele-spam filter and it seems that they are blank, but I suspect they contain empty spaces which is why our matches don't work. Does anyone have some sample DialPlan code that they are using to thwart incoming calls with no caller ID? I was thinking of maybe converting the caller ID num to a numeric value and testing for 'not equal to 0' but that won't work with the + prefix. All suggestions greatly appreciated. Myles -- ----------------------------- Myles Wakeham Director of Engineering Tech Solutions USA, Inc. www.techsolusa.com Phone +1-480-451-7440 -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
