Điện thoại Cisco SPA501G

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Điện thoại Cisco SPA501G,  Cisco SPA501G VoIP Phone
- 8 Lines
- 2 Ethernet Ports
- Power over Ethernet 802.3af
- Installed Protocols: SCCP, SIP
- No LCD Display
Cisco SPA 501G sử dụng giao thức mã hóa tiêu chuẩn để thực hiện trích lập dự phòng từ xa an toàn cao và không phô trương trong dịch vụ nâng cấp phần mềm. Công cụ dự phòng từ xa bao gồm đo lường hiệu suất chi tiết và các tính năng xử lý sự cố, cho phép các nhà cung cấp mạng để cung cấp hỗ trợ chất lượng cao cho các thuê bao của họ.Trích lập dự phòng từ xa cũng cung cấp dịch vụ tiết kiệm thời gian và chi phí quản lý, nạp trước, và cấu hình lại thiết bị cơ sở khách hàng.

Giải pháp tổng hợp của Cisco cho các tình huống về hệ thống điện thoại IP Cisco do NTG Phân phối!
Điện thoại Cisco SPA501G, IP Phone Cisco SPA501G, Điện thoai VoIP Cisco SPA501G, Điện thoại IP Phone SPA501G, Phân phối điện thoại IP Cisco SPA501G
Highlights Cisco SPA501G IP Phone
- Full-featured 8-line business-class IP phone supporting Power over Ethernet (PoE)
- Connects directly to an Internet telephone service provider or to an IP private branch exchange (PBX)
- Easy installation and highly secure remote provisioning, as well as menu-based and web-based configuration
- Wideband audio for unsurpassed voice clarity and enhanced speaker quality
- Paper label insert for buttons to indicate speed dials, shared lines, or extensions
- Supports up to two Cisco® SPA500S Expansion Module, adding an additional 64 buttons *
- Supports both Session Initiation Protocol (SIP) and Smart Phone Control Protocol (SPCP) with the Cisco Unified Communications 500 Series for Small Business
Comprehensive Interoperability and SIP-Based Feature Set
- Part of the Cisco Small Business Pro Series, the SIP- based Cisco SPA501G Basic 8-Line IP Phone has been tested to ensure comprehensive interoperability with equipment from voice over IP (VoIP) infrastructure leaders, enabling service providers to quickly roll out competitive, feature-rich services to their customers.
- With hundreds of features and configurable service parameters, the Cisco SPA501G addresses the requirements of traditional business users while building on the advantages of IP telephony. Features such as easy station moves and shared line appearances (across local and geographically dispersed locations) are just some of the many advantages of the Cisco SPA501G
Carrier-Grade Security, Provisioning, and Management
- The Cisco SPA501G uses standard encryption protocols to perform highly secure remote provisioning and unobtrusive in-service software upgrades. Remote provisioning tools include detailed performance measurement and troubleshooting features, enabling network providers to deliver high-quality support to their subscribers. Remote provisioning also saves service providers the time and expense of managing, preloading, and reconfiguring customer premises equipment.


Đại lý phân phối chính thức dòng IP Phone, điện thoại IP và tư vẫn miễn phí cho khách hàng có nhu cầu sử dung tong dai IP hoặc đầu số tổng đài 1900
Dien thoai Cisco SPA501G, IP Phone Cisco SPA501G, Điện thoai VoIP Cisco SPA501G, Điện thoại IP Phone SPA501G, Phân phối điện thoại IP Cisco SPA501G
Telephony Features Cisco SPA501G IP Phone
- Eight voice lines
- Four Independent SIP Registrations*
- Line status: active line indication
- User interface driven by Interactive Voice Response (IVR)
- Shared line appearance**
- Speakerphone
- Call hold
- Music on hold**
- Call waiting
- Outbound caller ID blocking
- Call transfer: attended and blind
- Three-way call conferencing with local mixing
- Multiparty conferencing via external conference bridge
- Automatic redial of last calling and last called numbers
- On-hook dialing
- Call pickup: selective and group**
- Call park and unpark**
- Call swap
- Call back on busy
- Call blocking: anonymous and selective
- Call forwarding: unconditional, no answer, on busy
- Hot line and warm line automatic calling
- Call logs (60 entries each): made, answered, and missed calls
- Personal directory with auto-dial (100 entries)
- Do not disturb
- Digits dialed with number auto-completion
- Anonymous caller blocking
- Uniform Resource Identifier (URI) (IP) dialing support (vanity numbers)
- On-hook default audio configuration (speakerphone and headset)
- Multiple ring tones with selectable ring tone per line
- Date and time with support for intelligent daylight savings
- Call start time stored in call logs
- Distinctive ringing based on calling and called number
- 10 user-downloadable ring tones
- Speed dialing, eight entries
- Configurable dial/numbering plan support
- Intercom**
- Group paging**
- Network Address Translation (NAT) Traversal, including Simple Traversal of UDP Through NATs (STUN) support
- DNS SRV and multiple A records for proxy lookup and proxy redundancy
- Syslog, debug, report generation, and event logging
- Highly secure call encrypted voice communications support
- Built-in web server for administration and configuration with multiple security levels
- Automated remote provisioning, multiple methods; up to 256-bit encryption (HTTP, HTTPS, Trivial File Transfer Protocol TFTP)
- Option to require administrator password to reset unit to factory defaults
Hardware Features Cisco SPA501G IP Phone
- Paper label area
- Dedicated illuminated buttons for:
     + Audio mute on/off
     + Headset on/off
     + Speakerphone on/off
- Voicemail message waiting indicator (VMWI) light
- Voicemail message retrieval button
- Dedicated hold button
- Settings button for access to IVR menu
- Volume control rocking up/down knob controls handset, headset, speaker, ringer
- Dedicated keys for redial, cancel, conference, and transfer
- Standard 12-button dialing pad
- High-quality handset and cradle
- Built-in high-quality microphone and speaker
- Headset jack: 2.5 mm
- Two Ethernet ports with integrated Ethernet switch: 10/100BASE-T RJ-45
- 802.3af-compliant PoE
- Optional 5 VDC universal (100-240V) switching; power supply is ordered separately (Cisco PA100)
Regulatory Compliance Cisco SPA501G IP Phone
- FCC (Part 15, Class B), CE Mark, A-Tick, C-Tick, Telepermit, UL, CB
Security Features Cisco SPA501G IP Phone
- Password-protected system, preset to factory default
- Password-protected access to administrator and user-level features
- HTTPS with factory-installed client certificate
- HTTP digest: encrypted authentication via MD5 (RFC 1321)
- Up to 256-bit Advanced Encryption Standard (AES) encryption
- SIP over Transport Layer Security (TLS)
Specifications Cisco SPA501G IP Phone
- Note: Many features are programmable within a defined range or list of options. Please see the SPA Administration Guide for details. The target configuration profile is uploaded to the SPA501G at the time of provisioning.
Data Networking Cisco SPA501G IP Phone
- 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 Cisco SPA501G IP Phone
- 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
- 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
- DC output voltage: +5 VDC at 2.0A maximum
- Switching power adapter: 100-240V 50-60 Hz AC input
Documentation
- Quick-Start Installation and Configuration Guide
- User Guide
- Administration Guide
- Provisioning Guide (for service providers only)
Package Contents
- Cisco SPA501G Basic 8-Line IP phone, handset, and stand
- Handset cord
- RJ-45 Ethernet cable
- Quick-Start Guide
- CD

Đại lý phân phối chính thức dòng IP Phone, điện thoại IP và tư vẫn miễn phí cho khách hàng có nhu cầu sử dung tong dai IP hoặc đầu số tổng đài 1900
Dien thoai Cisco SPA501G, IP Phone Cisco SPA501G, Điện thoai VoIP Cisco SPA501G, Điện thoại IP Phone SPA501G, Phân phối điện thoại IP Cisco SPA501G
Thông số kỹ thuật
- 8 button phone
- Dual switched ethernet ports
- IEEE 802.3af PoE (Power Over Ethernet)
- Supports SIP or SPCP protocol
- G.729 and G.722 Wideband Audio Support
- Menu driven user interface
- Web based GUI, remote provisioning
- IP dialing support
- Replaceable paper speed dial insert
- 2.5mm stereo headset connector
- AUX port (SPA932 or SPA500S attendant console is supported)
- High quality audio handset
- Full duplex hands free speakerphone
- Hearing aid compatability (HAC)
- Support calls between TTY's
- Works well with GN Netcom, Jabra and Plantronics wired headsets
- Optional PA100 Power Adapter and MB100 Wall Mount Adapter


Đại lý phân phối chính thức dòng IP Phone, điện thoại IP và tư vẫn miễn phí cho khách hàng có nhu cầu sử dung tong dai IP hoặc đầu số tổng đài 1900

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