The SPA504G Cisco 4 Lines Small Business IP Phone is a high-performance business phone designed for use with Cisco Unified Communications Manager (UCM) systems. It features four lines, a large display screen, and a range of advanced features that make it ideal for use in small to medium-sized businesses.

One of the key features of the model is its compatibility with a wide range of Cisco UCM systems, including versions 8.0 and higher. It is also compatible with a variety of voice protocols such as SIP, MGCP, and SCCP, making it a versatile and flexible solution for a wide range of voice connectivity needs.

In terms of performance, the product is designed to deliver clear and reliable voice quality, even in noisy environments. It also includes a range of advanced features such as call transfer, call hold, and conference calling, making it ideal for use in a variety of business settings.

Compatibility

The Cisco SPA504G is a 4-line IP phone that is designed to work with a variety of VoIP systems. It is compatible with many popular VoIP platforms, including Cisco's own CallManager, Asterisk, and others that support the SIP protocol. It is also compatible with most of the common PSTN networks.

The SPA504G has a number of features that make it well-suited for use in a business setting, including support for multiple call appearances, a built-in speakerphone, and a large, easy-to-use display. Additionally, the phone supports a wide range of codecs, including G.711, G.729a, G.723.1, and more.

Reliability of IP Phone

The SPA504G Cisco 4 Lines Small Business IP Phone is a highly reliable VoIP phone designed for use in small business environments. It features four lines and is capable of supporting up to two calls per line, making it a versatile and flexible solution for small businesses.

One of the key features of the SPA504G is its ability to support a wide range of VoIP protocols, including SIP, H.323, and MGCP. This allows it to be easily integrated into a variety of VoIP networks and provides users with a range of connectivity options.

In terms of hardware, the SPA504G is built to withstand the demands of small business environments, with a durable metal chassis and a fanless design for quiet operation. It also includes a built-in web-based management interface that allows administrators to easily configure and manage the phone remotely.

General Information about this Cisco SPA504G

• Manufacturer: Cisco
• Part Number or SKU# SPA504G
• Product Series: 500
• Product Model: SPA 504G
• Product Type: Voice Over Internet Protocol (VoIP) Phone

Technical Information of VoIP Phone

• Telephony Equipment: IP Phone
• Network (RJ-45): Yes
• Number of Network (RJ-45) Ports: 2
• Headset Port: Yes
• Body Color : Silver, Dark Gray
• Body Material : Abs Plastic

Phone Features for 2 Ports Internet Protocol Phone

• Key Expansion Module Max Qty : 2
• Dialer Type : Keypad
• Dialer Location : Base
• Conference Call Capability : 3-way
• Intercom : Yes
• Speakerphone : Yes ( Digital Duplex )
• Caller Id : Yes
• Automatic Redial : Yes
• Voice Mail Capability : Yes
• Call Waiting : Yes
• Call Forwarding : Yes
• Call Transfer : Yes
• Call Hold : Yes
• Menu Operation : Yes
• Function Buttons : Conference Button, Speakerphone Button, Transfer Button,
• Headset Button , Mute Button, Hold Button, Redial Button
• Programmable Buttons Qty : 4
• Volume Control : Yes
• Ringer Control : Yes
• Indicators : Voice Message Waiting Indicator, Speakerphone Indicator, Headset
• Firmware Upgradable : Yes
• Additional Functions : Call Timer, Built-in Clock, Pager Call
• Additional Features : On-hook Dialing, Music On Hold, Built-in Web Server

IP Telephony

• Main Features : Multiline Support, Multiple Voip Protocol Support, Integrated Ethernet Switch, Power Over Ethernet (poe) Support
• Voip Protocols : Sip, Sip V2, Spcp
• Voice Codecs : G.722, G.729a, G.711u, G.711a, G.726
• Lines Supported : 4 Lines
• Quality Of Service : Ieee 802.1q (vlan), Differentiated Services (diffserv), Ieee 802.1p, Type Of Service (tos)
• Ip Address Assignment : Dhcp
• Security : 256 Bit Aes
• Network Protocols : Ip, Tcp, Tftp, Udp, Icmp, Arp, Http, Dns, Https
• Network Ports Qty : 2 X Ethernet 10base-t/100base-tx
• Voice Features : Comfort Noise Generation (cng), Voice Activity Detection (vad), Hd Voice
• Network Features : Network Address Translation (nat)
• Phone Memory
• Phone Directory Capacity : 100 Names & Numbers
• Call Log Capacity : 60 Numbers

Display

• Type : Lcd Display - Monochrome
• Display Location : Base
• Display Resolution : 128 X 64 Pixels
• Features : Backlit

Compatibility Information

• SIP compatible for use with open source IP PBX platforms and hosted telephony solutions
• SPCP compatible for use with Cisco Unified Communications 300 (UC300) and 500 (UC500) Series for Small Business