The 6500c does not support conditional call forwarding (CCF) which is useful if your carrier does not provide blocking services. I have owned several nokia, a samsung, two LG, and currently have a blackberry 9330. If unwanted calls are a serious problem, consider upgradeing to a mobile phone that supports CCF. Conditional call forwarding can be used to forward any unwanted phone number includeing calls from unlisted, unknown or restricted callers. Depending on where you live, the call can be instantly forwarded to a service, such as trapcall.com, that unmasks the caller in addtion to providing the standard message "This number is no longer in service" for example.
You can try someCall blocking apps let you create blacklists – lists of numbers to block from calling your cell phone.To block these annoying phone calls, I use LEO Privacy:https://goo.gl/BCKwGq.
Highly recommend!!
I like using LEO Privacy, it's very safe and makes me free. I always receive some harass calls, I'm really sad for that, until I found this app, I can add them into Blacklist. Love this app, so I recommand this app to you:https://goo.gl/BCKwGq
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In fact, you can have a try with this app which can completely help you to block the annoying phone calls and I'm always using it.
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