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Voice Gateway with Router, Cisco SPA3102
16830 лв.
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Analog Calls Routed Over the Internet

Internet telephone service is now more accessible than before. Part of Cisco Small Business Voice Gateways and ATAs, the SPA3102 Voice Gateway allows automatic routing of local calls from mobile phones and land lines to Voice over Internet Protocol (VoIP) service providers, and vice versa. By first calling the local number on the SPA3102, you can reduce or eliminate long-distance charges altogether.

If power goes out or Internet service is lost, calls can be safely redirected to a traditional carrier via the standard analog interface.

Additional features of the Cisco SPA3102 include:

  • One RJ-11 POTS (Plain Old Telephone Service) FXS port to connect an existing analog phone or fax machine
  • One PSTN FXO port to connect to a Telco or PBX circuit
  • Two 100BaseT RJ-45 Ethernet interfaces to connect to a home or office LAN, and an Ethernet connection to a broadband modem or router
  • FXS and FXO lines that can be independently configured
  • Secure encryption-based methods for communication, provisioning, and servicing

Product Overview

The Cisco® SPA3102 Phone Adapter with Router features the ability to connect standard telephones and fax machines to an IP-based data network, with the additional benefit of an integrated connection for legacy telephone network "hop-on, hop-off" applications. SPA3102 users will be able to extend the use of their broadband phone service by automatically routing local calls from mobile phones and landlines to voice over IP (VoIP) service providers, and vice versa. If power is lost to the unit or Internet service is down, calls can be redirected to a traditional carrier via the FXO interface.
The Cisco SPA3102 supports one RJ-11 basic telephone FXS port to connect an existing analog phone or fax machine. It also supports one public switched telephone network (PSTN) FXO port to connect to a telephone company (Telco) or private branch exchange (PBX) circuit. The SPA3102 also includes two 100BASE-T RJ-45 Ethernet interfaces to connect to a home or office LAN, as well as an Ethernet connection to a broadband modem or router. The FXS and FXO lines can be configured independently via software controlled by the service provider or the end user.


Table 1 contains the specifications and package contents for the Cisco SPA3102 Phone Adapter with Router. Table 2 compares the various Cisco Small Business Phone Adapters.

Table 1. Specifications for the Cisco SPA3102 Phone Adapter with Router


Data networking

• MAC address (IEEE 802.3)
• IPv4 (RFC 791) upgradeable to v6 (RFC 1883)
• Address Resolution Protocol (ARP)
• DNS A record (RFC 1706), SRV record (RFC 2782)
• Dynamic Host Configuration Protocol (DHCP) client (RFC 2131)
• DHCP server (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, 1890)
• Real Time Control Protocol (RTCP) (RFC 1889)
• Differentiated Services (DiffServ) (RFC 2475), type of service (ToS) (RFC 791, 1349)
• VLAN tagging 802.1p
• Simple Network Time Protocol (SNTP) (RFC 2030)
• Upload data rate limiting - static and automatic
• Quality of service (QoS) - voice packet prioritization over other packet types
• Router or bridge mode of operation
• MAC address cloning
• Port forwarding

Voice gateway

• Session Initiation Protocol (SIP) v2 (RFC 3261, 3262, 3263, 3264)
• SIP proxy redundancy - dynamic via DNS SRV, A records
• Reregistration with primary SIP proxy server
• SIP support in Network Address Translation (NAT) networks (including Serial Tunnel [STUN])
• Secure (encrypted) calling via prestandard implementation of Secure RTP
• Codec name assignment

Voice algorithms

• G.711 (A-law and μ-law)
• G.726 (16/24/32/40 kbps)
• G.729 A
• G.723.1 (6.3 kbps, 5.3 kbps)
• Dynamic payload
• Adjustable audio frames per packet

Fax capability

• Fax tone detection and pass-through (using G.711)
• Fax pass-though (using G.711)
• Dual-tone multifrequency (DTMF): in-band and out-of-band (RFC 2833) (SIP info)
• Flexible dial plan support with interdigit timers and IP dialing
• Call progress tone generation
• Jitter buffer - adaptive
• Frame loss concealment
• Full-duplex audio
• Echo cancellation (G.165/G.168)
• Voice activity detection (VAD) with silence suppression
• Attenuation/gain adjustments
• Flash hook timer
• Message waiting indicator (MWI) tones
• Visual MWI (VMWI) via frequency shift keying (FSK)
• Polarity control
• Hook flash event signaling
• Caller ID generation (name and number) - Bellcore, DTMF, European Telecommunications Standards Institute (ETSI)
• Music on hold client
• Streaming audio server - up to 10 sessions


• Password-protected system reset to factory default
• Password-protected administrator and user access authority
• Provisioning/configuration/authentication:
• HTTPS with factory-installed client certificate
• HTTP digest - encrypted authentication via MD5 (RFC 1321)
• Up to 256-bit Advanced Encryption Standard (AES) encryption

Provisioning, administration, and maintenance

• Web browser administration and configuration via integrated web server
• Telephone keypad configuration with interactive voice prompts
• Automated provisioning and upgrade via HTTP, Trivial File Transfer Protocol (TFTP)
• Asynchronous notification of upgrade availability via SIP NOTIFY
• Nonintrusive, in-service upgrades
• Report generation and event logging
• Stats in BYE message
• Syslog and debug server records - per-line configurable
• Per line and purpose configurable syslog and debug options

Physical interfaces

• Two 100BASE-T RJ-45 Ethernet ports (IEEE 802.3) - 1 WAN, 1 LAN
• 1 RJ-11 FXS phone port - for analog circuit telephone device (tip/ring)
• 1 RJ-11 FXO phone port - for a Telco or PBX connection


Ring voltage: 40-55 VRMs configurable

Subscriber line interface circuit (SLIC)

• Ring frequency: 10-40 Hz
• Ring waveform: trapezoidal and sinusoidal
• Maximum ringer load: 3 ringer equivalence numbers (RENs)
• On-hook/off-hook characteristics:
• On-hook voltage (tip/ring): -50V nominal
• Off-hook current: 25 mA min
• Terminating impedance: 8 configurable settings including North America 600 ohms, European CTR21

Regulatory compliance

• FCC (Part 15 Class B), CE, ICES-003, A-Tick certification, RoHS

Power supply

• DC input voltage: +5V DC at 2.0A max
• Power consumption: 5W
• Switching type (100-240V) automatic
• Power adapter: 100-240V, 50-60 Hz (26-34 VA) AC input

Indicator lights/LEDs

Power, Internet, Phone 1, Phone 2


• Quick installation, user, and configuration guides
• Administration guide - service providers only
• Provisioning guide - service providers only



3.98 x 3.98 x 1.10 in. (101 x 101 x 28 mm)

Unit weight

5.11 oz. (0.145 kg)

Operating temperature

32º to 113º F (0º to 45º C)

Storage temperature

-13º to 185º F (-25º to 85º C)

Operating humidity

10% to 90% noncondensing, operating and nonoperating

Package Contents

• Cisco SPA3102 Phone Adapter with Router
• Power adapter
• 1 RJ-45 Ethernet cable
• 1 RJ-11 telephone cable
• Quick installation guide

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