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Telephony Firewall
Basic functions:
- Analysis of calling and called party numbers and comparison with black- and white-lists
- Detection of DTMF sequences in voice tract
- DTMF distortion feature
- Call record keeping
- Can be integrated with access control systems
Services:
- Blacklist mode
- Create of groups of subscriber numbers
- Black and white lists
- Calling party number modification
- Automatically reads external system configuration files
- Transfer of information files to external server
Applications:
- Control transit traffic
- Filter transit traffic
- Control traffic from connected operators
- Protect switching equipment from external actions