Analog VoIP Gateway Dinstar DAG2500-72S
Physical Interfaces
- 72 FXS with 3* RJ21, 50 PIN
- Console: 1* RS232, 115200bps
- Network Interface: 2* 10/100/1000 Base-T
Voice & FAX
- G.711A/U law, G.723.1, G.729A/B, G.726, iLBC, AMR
- Silence Suppression
- Comfort Noise Generation (CNG)
- Voice Activity Detection (VAD)
- Echo Cancellation (G.168), with up to 128ms
- Adaptive (Dynamic) Jitter Buffer
- Programmable Gain Control
- T.38/Pass-through
- Modem/POS
- DTMF mode: SIP Info/RFC2833/In-band
- VLAN 802.1P/802.1Q
- Layer3 QoS and DiffServ
FXS
- Connector: RJ21
- Dial Mode: DTMF and Pulse
- Pulse: 10 and 20 PPS
- Caller ID: DTMF/FSK CLI Presentation
- Max Cable Length: 5KM
- Reversed Polarity
- Programmable Call Progress Tone
VoIP
- Protocol: TLS / SRTP SIP v2.0 (UDP/TCP), RFC3261, SDP, RTP (RFC2833), RFC3262, 3263, 3264, 3265, 3515, 2976, 3311
- RTP/RTCP, RFC2198, 1889
- RFC4028 Session Timer
- RFC3266 IPv6 in SDP
- RFC2806 TEL URI
- RFC3581 NAT,rport
- Primary/Backup SIP Server
- Outbound Proxy
- DNS SRV/A Query/NATPR Query
- Early Media/Early Answer
- NAT: STUN, Static/Dynamic NAT
Supplementary Service
- Call Waiting, Blind Transfer, Attend Transfer, Call Pickup, Call Forward on Busy, Call Forward on No Reply, Unconditional Call Forward, Warm/Immediately Hotline, Call Hold, Do-not-disturb, 3-Way Conference, Message Waiting Indicator (MWI)
General
- Power Supply: 100-240VAC, 50-60 Hz
- Power Consumption: 75W
- Dimensions: 440 x 280 x 44 mm (1U)
- Weight: 4.0kg
- Bảo hành: 12 tháng.
