| Specifications | |
| 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) client (RFC 2131)
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)
VLAN tagging (IEEE 802.1p)
Simple Network Time Protocol (SNTP) (RFC 2030)
SIP channels support for both UDP and TCP transport | 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) |
| 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) | 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) |
| Voice Features | 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 | 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 |
| Physical interfaces | 1 WAN 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
| 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 |
| 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 | 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 |
| 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 | 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 |
| LEDs | Phone 1, phone 2, Internet, and power
| Phone 1, phone 2, Internet, and power
|
| Environmental | |
| Dimensions (W x H x D) | 3.98 x 3.98 x 1.10 in. (101 x 101 x 28 mm) | 3.98 x 3.98 x 1.10 in. (101 x 101 x 28 mm) |
| Unit weight | 5.40 oz (153 g) | 5.40 oz (153g) |
| Operating temperature | 32 to 113ºF (0 to 45ºC) | 32 to 113ºF (0 to 45ºC) |
| Storage temperature | –77 to 158ºF (–25 to 70ºC) | –77 to 158ºF (–25 to 70ºC) |
| Operating humidity | 10 to 90% noncondensing | 10 to 90% noncondensing |
| Storage humidity | 10 to 90% noncondensing | 10 to 90% noncondensing |
