Capacity

• 8K DS0 Simultaneous Call
  - 4 STM-1(252E1)

Redundancy

• System control & Call processing
• IP/TDM switch and Interface
• STM-1 Interface
• Voice CODEC

Network Interface

• IP Network
• Fast Ethernet : 16 FE or
• Gigabit Ethernet : 4 GbE
• PSTN
• 1 STM-1 / Card, 8 STM-1 (1:1 Redundancy) / Shelf
• Management
• 100BT(in case of out-of-band)

Power

• -42 ~ -58V DC

Physical

• Rack size(mm)
  - 2100(H) x 800(W) x 746(D)

Media Processing

• Service
• IP ↔ TDM
• TDM ↔ TDM
• Traffic Type
• RTP/RTCP(RFC 1889, 1890)

Voice

• Compression
• G.711(A-law and u-law) : 10,20,30msec
• G.723.1 : 30,60,90msec
• G.729a/b : 10,20,30,40,50,60,70,80msec
• Quality
• Echo Canceller: G.165, G.168 (Up to 128ms)
• Silence Suppression
• Jitter Buffer
• DSCP Marking

Resource

• Tone
• Tone Detection & Generation
• MEGACO/H.248 tone package
• DTMF
• DTMF Detection & Generation
• MEGACO/H.248 DTMF package
• FAX
• ITU-T T.38(Real-Time FAX)
• T.30 FAX Pass-Through
• Network Synchronization (only 16 E1)
• Mode : Free-run, Normal, Fast, Hold-over
• External : E1 Trunk
• Internal : Local Oscillator

Call Control Protocol

• IETF/ITU-T : MEGACO/H.248
  SIP(*option)

Management

• SNMPv1, v2
• Telnet
• Tftp

Operation

• SNMP Agent
• Inband/Out-of-band Management
• SNMP v2
• MIB
• Statistics
• Message Trace
• MMI

Maintenance & Administration

• Fault Detection & Test
  - Auto Test, Periodic Test, Passive Test, etc
• Alarm
• NTP

Support different router

• for IP Network interface redundancy
• At the same time, interworking with 2 Routers
• link aggregation 지원