Cisco SPA504G Kigali Rwanda

Cisco SPA504G

Cisco SPA504G is a Full-featured 4-line business-class IP phone supporting Power over Ethernet (PoE).Monochrome backlit display for ease of use, and on-screen applications. The sip protocol allow you to Connects directly to an Internet telephone service provider or to an IP private branch exchange ( IP PBX).Inbuilt Dual switched Ethernet ports for connecting a computer behind the phone, reducing cabling costs.

Description

Cisco SPA504G IP PHONE

Cisco SPA502 Supports up to two Cisco SPA500S Expansion Module, adding up to 64 additional buttons.Supports both Session Initiation Protocol (SIP) and Smart Phone Control Protocol (SPCP) with the Cisco Unified Communications 500 Series for Small Business.

Cisco SPA502G Specification

LCD display with a resolution of 128 x 64 (mono)
2 port s 10 / 100BASE-T RJ-45 Ethernet (IEEE 802.3)
The handset RJ-9
Built-in speaker and microphone
2.5mm Headset Jack
LEDs / buttons:
4 buttons
LEDs indicate the status of the line – active, not registered,
Illuminated buttons: Audio Mute On / Off Headset On / Off, Speakerphone On / Off

Supported network protocols:

MAC address (IEEE 802.3)
IPv4 (RFC 791)
Address Resolution Protocol (ARP)
DNS: A record (RFC 1706), the SRV record (RFC 2782)
Dynamic Host Conf iguration 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)

Specification of the voice:

4 lines
Voice protocol SIP v.2 (RFC 3261, 3262, 3263, 3264)
SPCP with the Cisco Unified Communications 500 Series
Support reduntantnego Server SIP
Protocol support SIP networks with NAT (including STUN server support)
Registration redoing the primary server SIP
SIP Frag (RFC 3420)
The ability to initiate encrypted connections via SRTP
Voice codecs:
- G.711 (A-law and μ-law)
- G.726 (16/24/32/40 kbps)
- G.729 A
- G.722
Dynamic payload support
The possibility laid site and a size of the 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
Support for call by IP address / URL
Generating sounds during a conversation
Jitter buffer: adaptive
Hiding lost frames
Generate artificial background noise generation (CNG)
The algorithm recognizes a caller activity (VAD) algorithm damping silence
Adjusting damping / profit
VMWI – Voicemail waiting indicator, by sub skrypcje, notification
Third-party call control (RFC 3725)

Provisioning and Administration:

Built Administration Server to manage dlaadministratora and User
Management by phone keypad on the screen
The system provisioning via HTTPS, HTTP, TFTP
Asynchronous notification for updates notification (NOTIFY)
Nonintrusive in-service upgrades
Generating reports and registration of events
Statistics BYE broadcast in the news
And syslog server entries dubug: configurable per line

Environmental Specifications:

Power supply:
- Power of Ethernet 802.3af
- The power supply is optional and is purchased separately
- Compatible power supply models: Cisco PA100-NA, PA100-EU, PA100-UK, PA100-AU
- Specifications power supply on the output: +5 VDC at 2.0A
Dimensions: 214 x 212 x 44 mm
Weight: 0.9 kg
Operating temperature: 0 ° ~ 40 ° C
Storage Temperature: -20º ~ 70ºC
Air humidity Operating: 5% to 95%
Air humidity during storage: 5% to 95%