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You can make encrypted calls for free using an application like CSipSimple and ZRTP. Calls to another SIP user are completely free. Calls to a landline are $0
by dublinben 12y ago
You can make encrypted calls for free using an application like CSipSimple and ZRTP. Calls to another SIP user are completely free. Calls to a landline are $0.01 with many VOIP providers.