1S1O Hybrid Analog VoIP Gateway
DAG1000 series hybrid analog gateways are multi-purpose IP-based voice and fax gateways. DAG1000 supports kinds of work places, for small business, work at home, remote office and branch businesses and provides a low cost, simple operation VoIP solution. FXS/FXO hybrid gateway can support network failure and power failure lifeline feature, flexibly achieve interoperability with simulation PBX and offer reliable voice quality assurance for the traditional voice transition to IP voice. It also supports standard SIP protocol and can be compatible mainstream IPPBX and softswitch platform.
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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QoS:L3 DIFFServ, 802, 1P/Q VLAN Tagging
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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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3 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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Call Forwarding (Unconditional, No reply)
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Automatic firmware upgrade and configuration via HTTP/HTTPS
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Speed Dial
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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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SNMP/TR-069
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TLS/SRTP