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Business Telefon system IP PBX VoIP Telefon Asterisk - IP PBX
Foreign exchange service, Foreign exchange office Grandstream UCM6202 IP PBX Telefon - Grandstream Indien
Business-Telefon-system (Session Initiation Protocol) VoIP-Telefon Voice-over-IP-Digium - SIP trunking
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FreePBX Asterisk Voice over IP Telefon Sangoma Technologies Corporation - Feuer&internen&Urlaub;
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Unified communications Business Telefonanlage Session border controller Sangoma Technologies Corporation, IP-PBX - Digital Enhanced Akku Telekommunikation
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