SPA301

Cisco 1-Line IP Phone Data Sheet

• Basic 1-line business-class IP phone

• Connects directly to an Internet telephone service provider or to an IP private branch exchange (PBX)

• Easy installation and secure remote provisioning, as well as web-based configuration

• Supports both Session Initiation Protocol (SIP) and Smart Phone Control Protocol (SPCP) with the Cisco® Unified Communications 500 Series

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Description

Specification

Data networking

• MAC address (IEEE 802.3)
• IPv4 (RFC 791)
• Address Resolution Protocol (ARP)
• DNS: A record (RFC 1706), SRV record (RFC 2782)
• Dynamic Host Configuration Protocol (DHCP) client (RFC 2131)
• 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)
• Real Time Control Protocol - Extended Report (RFC 3611)
• Differentiated Services (DiffServ) (RFC 2475)
• Type of service (ToS) (RFC 791, 1349)
• VLAN tagging 802.1p/Q: Layer 2 quality of service (QoS)
• Simple Network Time Protocol (SNTP) (RFC 2030)

Voice gateway

• SIP version 2 (RFC 3261, 3262, 3263, 3264)
• SPCP with the Cisco Unified Communications 500 Series
• SIP proxy redundancy: dynamic via DNS SRV, A records
• Re-registration with primary SIP proxy server
• SIP support in NAT networks (including STUN)
• SIPFrag (RFC 3420)
• Highly secure (encrypted) calling via Secure Real-Time Transport Protocol (SRTP)
• SIP/TLS
• Codec name assignment
• Voice algorithms:
• G.711 (A-law and μ-law)
• G.726 (16/24/32/40 kbps)
• G.729 AB
• G.722
• Dynamic payload support
• Adjustable audio frames per packet
• Dual-tone multifrequency (DTMF), in-band and out-of-band (RFC 2833) (SIP INFO)
• Flexible dial plan support with interdigit timers
• IP address/URI dialing support
• Call progress tone generation
• Jitter buffer: adaptive
• Frame loss concealment
• Voice activity detection (VAD) with silence suppression
• Attenuation/gain adjustments
• Message waiting indicator (MWI) tones
• Voicemail waiting indicator (VMWI), via NOTIFY, SUBSCRIBE
• Caller ID support (name and number)
• Third-party call control (RFC 3725)

Provisioning, administration, 
and maintenance

• Integrated web server provides web-based administration and configuration
• Automated provisioning and upgrade via TFTP, HTTP or HTTPS
• Asynchronous notification of upgrade availability via NOTIFY
• Nonintrusive in-service upgrades
• Report generation and event logging
• Statistics transmitted in BYE message
• RTCP-XR
• Syslog and debug server records: configurable per line

Power supply

• Switching type (100-240V) automatic
• DC input voltage: +5 VDC at 1.0A maximum

Physical interfaces

• One 10/100BASE-T RJ-45 Ethernet port (IEEE 802.3)
• Handset: RJ-9 connector

Indicator lights/LED

• Message waiting indicator LED

Dimensions (W x H x D)

7.76 x 3.82 x 1.77 inches (194 x 97 x 45 mm)

Unit weight

1.7 lb ( 0.7711 kg)

Operating temperature

32º ~ 113ºF (0º ~ 40ºC)

Storage temperature

-13º ~ 185ºF (-20º ~ 70ºC)

Operating humidity

5% to 95% noncondensing

Storage humidity

5% to 95% noncondensing

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