Telefone IP Cisco SPA504G T IP Phone w/ Display, PoE, PC Port

Telefone IP Cisco SPA504G T IP Phone w/ Display, PoE, PC Port

Nova linha de telefones IP da Cisco. Telefone IP com 4 linhas, 2 Portas Switch, PoE and LCD Display

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 Transport 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/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
Reregistration with primary SIP proxy server
SIP support in NAT networks (including STUN)
SIPFrag (RFC 3420)
Secure (encrypted) calling via SRTP
Codec name assignment
Voice algorithms:
G.711 (A-law and µ-law)
G.726 (16/24/32/40 kbps)
G.729 A
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
Comfort Noise Generation (CNG)
Voice activity detection (VAD) with silence suppression
Attenuation/gain adjustments
VMWI - Voicemail Waiting Indicator, 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
Syslog and debug server records: configurable per line

Power supply
Power supply is optional and is purchased separately
Models: Cisco PA100-NA, PA100-EU, PA100-UK, PA100-AU
Switching type (100-240V) automatic
DC output voltage: +5 VDC at 2.0A maximum
Power adapter: 100-240V 50-60 Hz (26-34 VA) AC input

Physical interfaces
Two 10/100BASE-T RJ-45 Ethernet ports (IEEE 802.3)
Handset: RJ-9 connector
Built-in speakerphone and microphone
Headset 2.5mm jack

Indicator lights/LEDs
Speakerphone on/off button with LED
Headset on/off button with LED
Mute button with LED
Message waiting LED

Body dimensions (W x H x D)
8.42 x 8.35. x 1.73 in. (214 x 212 x 44 mm)

Unit weight
2.00 lb ( 0.9 kg)

Operating temperature
32º ~ 104ºF (0º ~ 40ºC)

Storage temperature
-4º ~ 158ºF (-20º ~ 70ºC)

Operating humidity
5% to 95% noncondensing

Storage humidity
5% to 95% noncondensing