... 2 / 4 / 6 SIP Lines Backup SIP Servers Stylish, practical and economical, the OFS-IP620 IP is an advanced IP . It is equippe...
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VOIP GSM Gateway with Internal Attenna , 8 Channel , Support SIP / H.323 OFS-GP8I GP is designed to work in conjunction with key phone systems and IP-...
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... Mode OFS-GP4I GP is designed to work in conjunction with key systems and IP-PBX to provide GSM communications. The extensive compatibil...
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