8S8O Hybrid Analog VoIP Gateway
The IAD2000-8S8O Hybrid Analog VoIP Gateway offering seamless connectivity between IP-based telephony networks and legacy telephones (POTS), fax machines and PBX systems. The analog gateway has 8 FXS and 8 FXO ports which integrates both FXS and FXO features. Besides, the gateway is also designed with power fail over and IP/SIP fail over features. With the standard SIP protocol, it's compatible with leading IMS/NGN platforms and SIP-based IP Phone systems. It provides low-cost and easy-to-use VoIP solutions for small and medium businesses, call centers, SOHO, remote offices as well as enterprises with multiple branches.
Detailed parameters

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IPv6, IPv4
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SIP/IMS
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SIP v2.0 (RFC3261) based on UDP/TCP/TLS
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Fax over T.38 and Pass-through
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3-way conference
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Hunting group
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Voice Mail
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Pluse Dialing
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MWI
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5 km long haul
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Music on hold
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Call waiting
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Call Transfer (Blind transfer, Attend transfer)
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Speed Dial
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Do Not Disturb(DND)
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Automatic firmware upgrade and configuration via HTTP/HTTPS
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System logs & CDR
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Flexible routing & dial plan
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Backup and restore
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TLS/SRTP