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The participant may use out - of-band signaling to participate in a conference , but this is not mandatory . So Debian may distribute Firefox under a different name , along with a different logo and icon . Each terminal session is independent , with the host operating system managing conflicts between multiple users contending for shared resources . This is because offer / answer exchanges provide parties with an initial integrity-protected channel that clients and floor control servers can use to exchange the fingerprints of their self-signed certificates . While many enterprises turn to blade server technology to simplify data centers , cost savings are another major draw .