CISCO Refurbished
- Manufacturer
- CISCO
- Condition
- Refurbished
- Lead Time
- 3-4 Days
- Availability
- Not In Stock
Description
The SPA504G is a business-class IP phone supplied by CISCO. It has a modern design with a high-resolution display and supports up to four lines. The phone is suitable for small to medium-sized businesses, offering multiple features such as call forwarding, call transfer, and conferencing. It also features intuitive menus and navigational buttons that allow users to easily access various functions. Additionally, the SPA504G has a built-in Ethernet switch and a PoE (Power over Ethernet) option, making it easy to connect to a network without the need for separate power cords. The phone also includes a speakerphone, a headset jack, and support for both SIP and SPCP protocols, making it a versatile choice for business communication. Overall, the CISCO SPA504G is a reliable and cost-effective IP phone option for businesses looking to improve their communication system.Please note:
Grade A - Hygienically cleaned with New Curly Cables
- Part Code
- SPA504G
- Description
- Cisco SPA504G 4-Line IP Phone
- Weight
- 3kg
- Comments
- Grade A - Hygienically cleaned with New Curly Cables
- Manufacturer
- CISCO
- End of Hardware Support
- Yes (31 May 2025)
- End of Sale
- Yes (1 June 2020)
- End of Life
- Yes (2 December 2019)
- Warranty
-
Specifications for the Cisco SPA504G 4-Line IP Phone
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Specifications for the Cisco SPA504G 4-Line IP Phone
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 (RFC793)
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)
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
Message waiting indicator (MWI) tones
VMWI via NOTIFY, SUBSCRIBE
Caller ID support (name and number)
Third-party call control (RFC 3725)
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
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
Handset: RJ-9 connector
Built-in speakerphone and microphone
Headset 2.5-mm port
Headset on/off button with LED
Mute button with LED
Message waiting LED
Cisco SPA500 Series IP Phone Comparison
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Cisco SPA500 Series IP Phone Comparison
Optional Accessories
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Optional Accessories
Refurbished CISCO SPA504G datasheet
Download PDF
Why Buy Refurbished?
Product Details
We provide refurbished Cisco kit, finished to exceptional standards: rigorously tested, immaculately packed and backed by the best customer service you'll find anywhere.
Committed to Cisco
Go Communications specialises in Refurbished Cisco Systems equipment. We can source virtually any Cisco part. Through our SAMEasNEW refurbished programme, we can even provide high quality, pre-owned parts that Cisco no longer makes - reducing your need to upgrade end-of-life equipment.
Committed to quality
Go Communications is committed to the highest levels of reliability and quality. Our state-of-the-art Cisco Certified Internetwork Expert (CCIE) development facility 'soak tests' every device and component we sell: only if it meets our exceptionally high standards can it be accepted onto our market-leading two-year warranty programme.
Committed to service
We believe in honouring our commitments, providing outstanding quality and delivering fantastic customer service at prices which are very hard to beat. As a result we have built a reputation as a trusted, reliable and knowledgeable source of high quality refurbished Cisco components.
Experience
Everyone at Go Communications has been involved with Cisco Systems products for more than fifteen years. That's not just those in our sales and engineering teams, but also our purchasing, logistics and even finance departments.
Fast Delivery
We believe we are one of the UK's fastest and most efficient Cisco delivery services. For instance, 'in stock' items can be delivered within the M25 corridor within two hours, or to Scotland and Wales within eight hours.
Two Year Warranty
We offer an industry-leading two year warranty* on all of our refurbished products. This includes overnight advanced replacement and ongoing technical support from our CCIE and CCNA certified technicians. We aim to replace all equipment under warranty within 24 hours. If the item isn't in stock, please allow up to 72 hours. If a replacement isn't available in time, we may offer a temporary solution free of charge. * Retail end-user clients only.
Terms and conditions of sale and purchase
Please follow the links for more details on our Terms of Purchase and Terms of Sale. For more information about our products, please call 01279 408 777 or email us at: sales@gocomsys.com.