Dinstar DAG3000-312S - VoIP Gateway

Max 312 FXS Ports, RJ21(50-pin telco), 3U Chassis

312 concurrent calls for all voice codecs

Ideal for VoIP deployments with large install base of analog devices

Redundant MCUs

Redundant power supplies

Dual bond GE: GE port failover & load balancing

Lightning protection up to 4KV

5KM long lines

Failover dial plan

Radius authentication

TACACS authentication

HTTPS

TLS & SRTP

Access control list

SIP v2, compatible with mainstream IP PBXs, Softswitches and SIP servers

Voice, Fax (T.38 & T.30 bypass) and modem support

IPv4/IPv6, VLAN, VPN, QoS

Flexible routing and dial plan

HD voice quality and various voice codecs

Features:

• Digit Map 
• IMPU 
• Action URL 
• Voicemail 
• Custom IVR 
• Call Holding 
• Call Waiting 
• Do-not-disturb 
• Blind Transfer 
• Attend Transfer 
• Call Forward on Busy 
• Call Forward on No Reply 
• Ringing Group, Hotline 
• 3-way Conference 
• Early Media/Early Answer 
• Abbreviated Dialing 
• Access and Peer Mode 
• SIP PnP Auto Provisioning 
• PBX IVR 
• Unconditional Call Forward 
• SIP registration to different servers 
• Flexible Call Routing Policy 
• Caller/Called Number Manipulation 
• Recording 
• T.38/Pass-through 
• Modem/POS 
• Silence Suppression 
• Bandwidth Optimization 
• Comfort Noise Generation(CNG) 
• Voice Activity Detection(VAD) 
• Packet Loss Concealment 
• Adaptive (Dynamic) Jitter Buffer 
• Programmable Gain Control 
• G.711A/U law, G.723.1, G.729A/B, G.726, iLBC, AMR, AMR-GSM 
• DTMF mode: Signal/RFC2833/INBAND 
• Echo Cancellation(G.168), with up to 128ms