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250 posts

Master Geek
+1 received by user: 8

Topic # 56664 20-Jan-2010 14:38 Send private message

I found this quite interesting. I have an iTalk number and my mobile phone number with CallerID blocked on both. I called my slingshot landline via both of the numbers, and even though they came up as UNAVAILABLE under called ID on my phone, I was able to use slingshot's "who called me" feature to find the numbers that had called.

Is this to say that my number isn't really hidden? I thought it would keep people from learning my number as I'm very tight on privacy, but obviously not. Is this normal? Isn't hiding your CallerID pointless if people can just find it anyway?

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19235 posts

Uber Geek
+1 received by user: 1107

Biddle Corp

  Reply # 291531 20-Jan-2010 14:44 Send private message

When you "hide" your CallerID it's still passed through between telcos when you make a call. It's up to the telco who terminates the call to ensure they follow this and not actually passthru a number if it is restricted. It seems like iTalk certainly aren't doing this.

iTalk also had issues many years ago where they were passing through blocked numbers in the SIP URI's.

842 posts

Ultimate Geek
+1 received by user: 30


  Reply # 291581 20-Jan-2010 17:15 Send private message

Will have a look into it.

Thanks for the feedback

250 posts

Master Geek
+1 received by user: 8

  Reply # 291585 20-Jan-2010 17:31 Send private message

No need! It's a great feature to catch those annoying prank calls that I sometimes get ;)

Just thought it was a bit strange, that's all!

5265 posts

Uber Geek
+1 received by user: 202

  Reply # 291624 20-Jan-2010 19:30 Send private message

Why do you want to block your outgoing CLID??



10652 posts

Uber Geek
+1 received by user: 382


  Reply # 292966 25-Jan-2010 20:03 Send private message

While you are "looking into it" can you please add rejection of caller ID withholders to your feature set please slingshot? I keep finding voicemails from people from when my asterisk box misses the call, and I would rather not have those calls able to leave messages.


842 posts

Ultimate Geek
+1 received by user: 30


  Reply # 293075 26-Jan-2010 09:50 Send private message

Could be an idea. Will see what I can do.

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