• Additional SIP security settings:
under Web GUI → Account X → SIP Settings → Security Settings:
- Check Domain Certificates:
Defines whether the domain certificates will be checked when TLS/TCP is used for SIP Transport.
- Validate Certificate Chain:
Validate certificate chain when TLS/TCP is configured.
- Validate Incoming SIP Messages:
Set “Yes” to Validate incoming messages by checking caller ID and CSeq headers. If the message does not
include the headers, it will be rejected.
- Check SIP User ID for Incoming INVITE:
Set “Yes” to enable checking the SIP User ID in the Request URI of incoming INVITE; if it does not match
the WP810 SIP User ID, the call will be rejected. Direct IP calling will also be disabled if checked.
- Accept Incoming SIP from Proxy Only:
Set “Yes” to force the WP810 to Check SIP address of the Request URI in the incoming SIP message; if it
doesn't match the SIP server address of the account, the call will be rejected.
- Authenticate Incoming INVITE:
Set “Yes” to Challenge the incoming INVITE for authentication with “SIP/401 Unauthorized” message
Figure 10 : Settings to Block Anonymous Call