Data networking | - MAC address (IEEE 802.3)
- IPv4 (RFC 791) upgradeable to IPv6 (RFC 1883)
- Address Resolution Protocol (ARP)
- Domain Name System (DNS) A record (RFC 1706) and SRV record (RFC 2782)
- Dynamic Host Configuration Protocol (DHCP) server and client (RFC 2131)
- DHCP client reservation
- DHCP Options 159 and 160
- Point-to-Point Protocol over Ethernet (PPoE) client (RFC 2516)
- Internet Control Message Protocol (ICMP) (RFC 792)
- TCP (RFC 793)
- User Datagram Protocol (UDP) (RFC 768)
- Real Time Protocol (RTP) (RFC 1889) (RFC 1890)
- Real Time Control Protocol (RTCP) (RFC 1889)
- Differentiated Services (DiffServ) (RFC 2475) and type of service (ToS) (RFC 791/1349)
- VLAN tagging (IEEE 802.1p)
- Simple Network Time Protocol (SNTP) (RFC 2030)
- Upload data rate limiting: static and automatic
- QoS voice packet prioritization over other packet types
- MAC address cloning
- Port forwarding
- SIP channels support both UDP and TCP transport
- VPN pass-through with IP Security encapsulating security payload (IPsec ESP), Point-to-Point Tunneling Protocol (PPTP), and Layer 2 Tunneling Protocol (L2TP)
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Voice gateway | - SIPv2 (RFC 3261, 3262, 3263, and 3264)
- SIP proxy redundancy: dynamic through use of DNS SRV A records
- Reregistration with primary SIP proxy server
- SIP support in Network Address Translation (NAT) networks (including Serial Tunnel [STUN])
- Highly secure (encrypted) calling using Secure RTP (SRTP)
- Codec name assignment
- G.711 (A-law and μ-law)
- G.726 (32 kbps)
- G.729 A
- Dynamic payload
- Adjustable audio frames per packet
- Dual-tone multifrequency (DTMF): in-band and out-of-band (RFC 2833) (SIP information)
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Voice features | - QoS (Ethernet port upstream bandwidth control)
- Independent configurable dial plans with interdigit timers and IP dialing (1 per port)
- Call progress tone generation
- Jitter buffer: Adaptive
- Frame loss concealment
- Full-duplex audio
- Echo cancellation (G.165 and G.168)
- Voice activity detection (VAD)
- Silence suppression
- Comfort noise generation (CNG)
- Attenuation and gain adjustments
- Flash hook timer
- Message waiting indicator (MWI) tones
- Visual messaging waiting indicator (VMWI) using frequency shift keying (FSK)
- Polarity control
- Hook flash event signaling
- Caller ID generation (name and number): Bellcore, DTMF, and European Telecommunications Standards Institute (ETSI)
- Streaming audio server: Up to 4 sessions
- Music on hold
- Call waiting, call waiting and caller ID
- Caller ID with name and number
- Caller ID blocking
- Selective and anonymous call rejection
- Call forwarding: No answer, busy, and all
- Do not disturb
- Call transfer, call return, and call back on busy
- Three-way conference calling with local mixing
- Per-call authentication and associated routing
- Call blocking with toll restriction
- Distinctive ringing: Calling and called number
- Off-hook warning tone
- Advanced inbound and outbound call routing
- Hotline and warmline calling
- Long silence (configurable time setting) silence threshold
- Disconnect tone (for example, reorder tone)
- Configurable ring frequency
- Ring validation time setting
- Tip and ring voltage adjustment setting
- Ring indication delay setting
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Fax capability | - Fax tone detection pass-through
- Fax pass-through using G.711
- Real-time fax over IP using T.38 fax relay (T.38 support is dependent on fax machine and network and transport resilience)
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Security | - Password-protected system reset to factory default
- Password-protected administrator and user access authority
- Provisioning, configuration, and authentication
- HTTPS with factory-installed client certificate
- HTTP digest: Encrypted authentication using MD5 (RFC 1321)
- Up to 256-bit Advanced Encryption Standard (AES) encryption
- SIP Transport Layer Security (TLS)
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Provisioning, administration, and maintenance | - Web browser administration and configuration using integral web server
- Telephone keypad configuration with interactive voice prompts
- Automated provisioning and upgrade using HTTPS, HTTP, and Trivial File Transfer Protocol (TFTP)
- TR-069
- Asynchronous notification of upgrade availability using Notify
- Nonintrusive, in-service upgrades
- Report generation and event logging
- Statistics in Bye message
- Debug and syslog server records: Per-line configurable web browser
- Ping and traceroute diagnostics
- Configuration management: Backup and restore
- Support for Bonjour
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Physical interfaces | - 1 WAN 100BASE-T RJ-45 Ethernet Port (IEEE 802.3)
- 1 LAN 100BASE-T RJ-45 Ethernet Port (IEEE 802.3)
- 2 RJ-11 FXS phone ports for analog circuit telephone device (tip and ring)
- Reset button
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Subscriber line interface circuit (SLIC) | - Ring voltage: 40–90 Vpk configurable
- Ring frequency: 20–25 Hz
- Ring waveform: Trapezoidal
- Maximum ringer load: 5 ringer equivalence numbers (RENs)
- On-hook voltage (tip and ring): –46 to –56V
- Off-hook current: 18–25 mA
- Terminating impedance: 600 ohm resistive or 270 ohm + 750 ohm
- 150 nF complex impedance
- Frequency response: 300–3400 Hz
- Return loss (600 ohm, 300–3400 Hz): up to 20 dB
- Insertion loss (1 Vrms at 1 kHz): 3–4 dB
- Total harmonic distortion (THD) (350 mV peak at 300 Hz): up to 3%
- Idle channel noise: 72 dB (typical)
- Longitudinal balance: 55 dB (typical)
- Off-hook threshold (line seizure): Rdc < 1000 ohm
- On-hook threshold (line release): Rdc >10000 ohm
- Rdc DC supervisory range: Rdc > 450 ohm
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Regulatory compliance | - FCC (Part 15 Class B), CE, ICES-003, A-Tick certification, Restriction of Hazardous Substances (RoHS), and UL
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Power supply | - DC input voltage: 5V DC at 2.0A maximum
- Power consumption: 5W
- Switching type (100–240V) automatic
- Power adapter: 100–240V and 50–60 Hz (26–34 VA) AC input, with 1.8m cord
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Indicator lights and LEDs | - Phone 1, phone 2, Internet, and power
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Documentation | - Quick Start Guide
- Administration Guide (available online)
- Provisioning Guide (available online)
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Environmental | |
Dimensions (W x H x D) | - 3.98 x 3.98 x 1.10 in. (101 x 101 x 28 mm)
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Unit weight | |
Operating temperature | |
Storage temperature | - –77 to 158ºF (–25 to 70ºC)
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Operating humidity | |
Storage humidity | |