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Telephony Specifications
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Voice Algorithms: G.711(A /µlaw), G.726, G.729A and G.723.1
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Fax Support: T.30 G III, Real Time / Secured T.38 Fax relay
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Silence Suppression : G.711, G.726, G.729A, G.723.1 |
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Echo Cancellation: G.165/G.168 compliant
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Voice Activity Detection (VAD) & Comfort Noise Generation (CNG)
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Dialing: DTMF, PULSE (optional) |
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Signaling Protocol: Loop Start |
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Adaptive Jitter Buffer and Programmable Gain Control |
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Phone/ Fax/ Key Phone System/ PBX Interface: FXS analogue (RJ-11)
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PSTN Interface: FXO analogue (RJ-11)
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Polarity Reversal:
*FXS generation
*FXO detection
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IP Specifications |
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IETF MGCP v1.0 (RFC 2705), SIP (RFC 3261) compliant
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LAN -
*Interface : 4 Ports Ethernet switch, 10/100 Base-T, RJ-45
*Internet Gateway Functions : DHCP server, NAT, Virtual Server, DMZ, IP/PORT/ MAC filtering |
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WAN -
* Interface : 10/100 Base-T Ethernet, RJ-45
* PPPoE client, DHCP client, Fixed IP address
* NAT Traversal : STUN, UPnP
* Dynamic DNS (DDNS) |
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QoS and IP TOS
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Call Features |
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Call hold |
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Call waiting |
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Call forward
- Unconditional (follow me)
- Busy forward
- No answer forward |
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Call transfer
- Unattended transfer
- Attended transfer |
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Call pick up |
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Repeat dialing |
Configuration & Management |
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Web-based Graphical User Interface (GUI) |
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Interactive Voice Response (IVR) |
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Remote management over the IP network |
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Web-based firmware upgrade |
LED Indicators
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Power, Run, Alarm, WAN, FXS/FXO (P1, P2) and LAN (L1~L4) |
General Specifications
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AC Power: AC100V- 240V, DC12V/1.2A, 50/60 Hz
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Temperature: 0° to 45°C (Operation)
-25°C to 75°C (Storage)
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Humidity: up to 90% non-condensing
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Emissions: FCC Part 15 Class B, CE Mark, CCC
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Telephone Safety: FCC Part 68
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Dimension: 202 x 172 x 35 mm (W/D/H)
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Weight: 430g
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Ordering Information |
Model |
Description |
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MG4220DXO
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1FXS, 1FXO, 1WAN, 4LAN, MGCP |
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MG4220DXS |
2FXS, 1WAN, 4LAN, MGCP |
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MG4220DX2O |
2FXO, 1WAN, 4LAN, MGCP
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MG4220DXSP |
1FXS, 1PSTN, 1WAN, 4LAN, MGCP |
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SP4220DXO
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1FXS, 1FXO, 1WAN, 4LAN, SIP |
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SP4220DXS
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2FXS, 1WAN, 4LAN, SIP |
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SP4220DX2O |
2FXO, 1WAN, 4LAN, SIP |
| SP4220DXSP |
1FXS, 1PSTN, 1WAN, 4LAN, SIP |
The specifications are subject to change without notice. All other products or trademarks are the property of their respective owners. |
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