Cisco SPA 525G

The Cisco SPA525G2 5-Line IP Phone with Color Display (Figure 1) is an excellent choice for businesses that require an enhanced user experience with a hosted IP telephony service, an IP private branch exchange (PBX), or a large-scale IP Centrex deployment. Part of the Cisco Small Business Series, the SPA525G2 uses industry-leading SPA voice over IP (VoIP) technology from Cisco, with high-quality hardware providing additional connectivity via Bluetooth, PoE (802.3af), or a Wireless-G client (802.11g).
Standard Cisco SPA525G2 features include five active lines, VLAN-capable dual switched Ethernet ports, 802.3af PoE support, a 3.2-inch QVGA color display, a full-duplex, high-quality speakerphone, a Bluetooth interface, a Wireless-G (802.11g) client, a 2.5-mm stereo headset port, and a USB 2.0 host port. Each line can be configured independently to use a unique phone number (or extension) or can use a shared number that is assigned to multiple phones. The power supply for the SPA525G2 is sold separately. The optional SPA500S 32-button attendant console adds up to 64 buttons for receptionist positions.
The Cisco SPA525G2 IP Phone further improves the user experience with VPN and video surveillance applications. It includes an embedded AnyConnect Secure Sockets Layer (SSL) VPN client that allows remote users to securely connect to their phone system and make calls over the Internet, without the need for additional hardware. The SPA525G2 also provides users the ability to view video feeds from Cisco WVC2300 and PVC2300 Business Internet Video Cameras, allowing users to quickly see different locations around the business in order to improve physical security. The SPA525G2 is part of the Cisco SPA500 Series IP Phones, a robust portfolio of small business phones providing a rich user experience that includes HD voice, on-phone applications, and intuitive menu options.
The Cisco SPA525G2 provides encrypted signaling, media, and provisioning information, using state-of-the-art technologies such as Session Initiation Protocol (SIP) over Transport Layer Security (TLS), Secure Real Time Protocol (SRTP), and HTTPS to secure communications between the phone and service provider. Cisco SPA Secure Remote Provisioning provides a highly secure mechanism for the service provider to remotely manage the phone/user configuration and software upgrades.
The Cisco SPA525G2 IP Phone can also be used with productivity-enhancing features such as VoiceView Express and Cisco XML applications when connected to the Cisco Unified Communication 500 Series in SPCP mode.
The Cisco SPA525G2 IP phone can easily grow with your business. New features can be added to the phone over time via firmware updates. New employees or employees who need to move to another location can simply plug in their preconfigured phones anywhere on the network, and the network will recognize the change. The phone also supports wireless network connectivity, providing unrestricted placement without the cost of running network cabling.
Features
- Call hold
- Music on hold [1]
- Call waiting
- Caller ID name and number and outbound caller ID blocking
- Caller ID mapping for incoming calls
- Outbound caller ID blocking
- Call transfer - attended or blind
- Call conferencing - hosted (N-party) or local (3-party)
- Call forwarding - unconditional, no answer, on busy
- Visual voice message waiting indicator (VMWI)
- Shared/bridge line appearance 1
- Call pickup - selective and group 1
- Call park and unpark 1
- Call back on busy
- Call blocking - anonymous and selective
- Do not disturb
- Intercom 1
- Group paging 1
- Extension mobility 1
- Configurable dial/numbering plan support with inter-digit timers - per line
- URL (IP) dialing support
- Distinctive ringing based on calling and called number
- Supplementary services feature activation codes
- Supplementary services announcements codes
- Configurable supplementary services soft keys
- Individual volume setting per audio path (headset/handset/speaker)
- SIP proxy redundancy - dynamic via DNS SRV, A records
- Re-registration with primary SIP proxy server
- SIP support in Network Address Translation (NAT) networks, including simple traversal of User Datagram Protocol (UDP) through NAT (serial tunnel [STUN])
- Codec name assignment
- Voice algorithms: ◦ G.711 (A-law and µ-law) ◦ G.726 (32 kbps) ◦ G.729 AB ◦ G.722, Wideband Audio
- Dynamic payload support
- Adjustable audio frames per packet
- Dual-tone multi-frequency (DTMF): in-band and out-of-band (RFC 2833), SIP INFO (RFC 2976)
- Flexible dial plan support with inter-digit timers
- IP address/Uniform Resource Identifier (URI) dialing support
- Call progress tone generation
- Jitter buffer - adaptive
- Frame loss concealment
- Voice activity detection (VAD) with silence suppression
- Attenuation/gain adjustments
- VMWI via NOTIFY, SUBSCRIBE
- Caller ID support (name and number)
- 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)
- Point-to-Point Protocol over Ethernet (PPoE) client (RFC 2516)
- Internet Control Message Protocol (ICMP) (RFC 792)
- TCP (RFC 793)
- UDP (RFC 768)
- Real Time Protocol (RTP) (RFC 1889, 1890)
- Real Time Control Protocol (RTCP) (RFC 1889), RTCP-XR (RFC 3611)
- Differentiated Services (DiffServ) (RFC 2475), type of service (ToS) (RFC 791, 1349)
- VLAN tagging 802.1p/Q
- Simple Network Time Protocol (SNTP) (RFC 2030)
Specifications
| # of RJ45 Ports | 2 |
| # of Lines | 5 |
| 3 way conference | Yes |
| AC Power Supply Included | Yes |
| Backlit-LCD | Yes |
| Color Screen | Yes | Display Type | High-Resolution |
| PoE Support | Yes |
