How to enable blocked SIP Providers

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The SIP protocol is used heavily for attacks from the Internet. As counter measure, OpenScape Office V3.2 and OpenScape Business have implemented a number of security mechanisms including the blocking of unknown peers.

External SIP communication is only possible via IP addresses and ports known to the system.

The document gives a description of all protection mechanisms, diagnostic data and recommended measures as well.

pdf-en.png  OpenScape Office: SIP Attack Protection

pdf-en.png  OpenScape Business: SIP Attack Protection