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- LANCOM router with the Voice Call Manager:
- LANCOM 883 VoIP
- LANCOM 884 VoIP
- LANCOM 178x
- LANCOM 179x
- LANCOM ISG 1000
- LANCOM ISG 4000
- LCOS as of version 10.20 RU7 (download latest version)
- LANtools as of version 10.20 (download latest version)
- Existing SIP provider line
- Existing and operational Internet connection
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