Name: Cisco | SPA303-G4 ยกเลิกการผลิต: IP Phone SPA 303
Brand: Cisco
SKU: SPA303-G4
Availability: InStock

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Specifications


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 ( RTCP-XR) ( 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 • Telephone keypad configuration via display menu/navigation • Automated provisioning and upgrade via HTTPS, HTTP, TFTP • 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	• Two 10/100BASE-T RJ-45 Ethernet ports (IEEE 802.3) • Handset: RJ-9 connector • Built-in speakerphone and microphone • Headset 2.5-mm port
Indicator lights/LED	• Speakerphone on/off button with LED • Headset on/off button with LED • Mute button with LED • Message waiting indicator LED • LED test function
Dimensions (W x H x D)	8.66 x 7.80. x 1.18 in. (220 x 198 x 30 mm)
Unit weight	1.50 lb ( 0.68kg)
Operating temperature	32º ~ 113ºF (0º ~ 40ºC)
Storage temperature	-13º ~ 185ºF (-20º ~ 70ºC)
Operating humidity	5% to 95% noncondensing
Storage humidity	5% to 95% noncondensing

Small Business 500 Series IP Phones Comparison


Model	Voice Lines	Ethernet Ports	High-Resolution Graphical Display	Power over Ethernet (PoE) Support
SPA 301G	1	1	No	No
SPA 303G	3	2	Yes	No
SPA 501G	8	2	No	Yes
SPA 502G	1	2	Yes	Yes
SPA 504G	4	2	Yes	Yes
SPA 508G	8	2	Yes	Yes
SPA 509G	12	2	Yes	Yes
SPA 525G	5	2	Color	Yes

Band:	Cisco
Type:
Model:
Part Number:	SPA303-G4
Features:
Detail:	SPA303-G4 \| IP Phone SPA 303 IP Phone, Australia power adapter, 3-Line (ยกเลิกการจำหน่าย)

ประเภท	ไม่
Model	ไม่
License / Features	ไม่

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Cisco | SPA303-G4 ยกเลิกการผลิต: IP Phone SPA 303

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Cisco | SPA303-G4 ยกเลิกการผลิต: IP Phone SPA 303

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