Whitelist Proxy - Mitel 6867i Administrator's Manual

Mitel 6800 Series SIP Phone Release 4.2.0 Administrator Guide

WHITELIST PROXY

To protect your IP phone network, you can configure a "Whitelist Proxy" feature that screens
incoming call requests received by the IP phones. When this feature is enabled, an IP phone
accepts call requests from a trusted proxy server only. The IP phone rejects any call requests
from an untrusted proxy server.
The whitelist is dynamically updated (i.e. the phones are able to refresh and resync the whitelist
[without a reboot] if the IP addresses corresponding to the proxy FQDNs are changed on the
DNS server).
The IP phone monitors the following events and an update is triggered if required:
• 200 OK responses to REGISTER requests if the peer's IP address is not currently in the
whitelist.
• 200 OK responses to INVITE requests if the peer's IP address is not currently in the whitelist.
• INVITE requests from untrusted proxy servers.
Notes:
1. 200 OK responses to INVITE requests for an IP call.
2. When more than one INVITE requests are received from the same untrusted proxy
server.
CONFIGURING WHITELIST PROXY USING THE CONFIGURATION FILES
You use the following parameter to configure the whitelist proxy feature using the configuration
files:
• sip whitelist
CONFIGURATION FILES
For the specific parameters you can set in the configuration files for setting Whitelist Proxy, see
Appendix A, the section,
6-18
"Whitelist Proxy Setting" on .
page A-277