Note: Anonymous call block remains enabled until the user enters *87. To deactivate anonymous call block, enter *87. To activate anonymous call block, enter *77. Anonymous Call Block Using the Phone Keypad Configuration via star code Note: Caller ID block remains enabled for all calls until the user enters *68. Dial *68 followed by the phone number to disable caller ID blocking. Dial *67 followed by the phone number to block the caller ID. Block Caller ID using the Phone Keypad Configuration via star code That being said, depending on how your SPA phones have been configured, these codes may or may not work for you.

If you have an administrator, contact them for details and possible training.

For information and help with your specific commands, refer to the help sites from the provider you chose. Since SPA phones do not use a specific call controller, access and procedures vary.Įach call controller can follow different procedures, so we can't tell you exactly how yours will work. These ITSP and IP PBX call controllers are a separate system in which the phone and the call controller communicate with each other to provide services such as call park, voicemail, and caller ID. Some examples of IP PBX services that may work with SPA phones include, Asterisk, Centile, and Metaswitch platforms. WebEx Calling, Ring Central, and Verizon are examples of an ITSP. Applicable Devices | Firmware Versionĭepending on the model and Firmware version, SPA Phones may service from an Internet Telephony Service Provider (ITSP) or an IP Private Branch Exchange (PBX) call control server. This document explains some possible options to block caller ID and anonymous calls on Cisco SPA300 series IP Phones. If the caller has set the phone to block caller ID, then the caller hears a busy signal or message when anonymous call blocking feature is enabled.

Anonymous call block prevents calls with unknown caller ID from ringing the IP phone. Caller ID block allows the users phone number not to appear to the person they call.

Caller id blocker