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WINCC OA COMMCENTER 3, BASE PACKAGE AND ADDITIONAL DYNAMIC VOICE RESPONSE VIA PHONE FOR 2500 ALARMS, NOT INCLUDING ACAPELA SPEECH ENGINE. PRICE PER WINCC OA SERVER. FOR FURTHER INFORMATION PLEASE REFER TO: INTERNET: HTTP://WWW.ACAPELA-GROUP.COM/AC APELA-TELECOM-1-SPEECH-SOLUTION ,