Is there any Security possibilities available for Cisco IP Phones, like a Keypad locking or PIN system where the user can lock his phone from others making International or cellphone calls from his phone.
I have heard of Cyberdata Corporation having a Magnetic Card Reader that can be attached to Cisco IP Phones. Similarly are there any Smart Card Readers that can be attached to Cisco IP Phones for Authentication. All suggestions are welcome. Thanks in Advance.