• Cisco SPA504G 4-line SIP IP phone with black handset
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Cisco

Cisco SPA504G | 4-line SIP IP phone, 2x 10/100 switch, PoE 802.3af Class 2, backlit LCD, HD voice (G.722), RJ-9 headset

SPA504G

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Description

Versatile 4-line SIP desk phone suited for knowledge workers and front-office staff. It combines a backlit display, integrated 2-port 10/100 switch, HD voice, and PoE for clean installations. Reliable, secure, and easy to provision for rapid deployment across multiple sites.

Features

- 4-line flexibility for busy desks
- Backlit display for clear navigation and call status
- HD voice quality with wideband codec support
- Integrated 2-port 10/100 switch for streamlined cabling
- PoE Class 2 for simple installations
- Programmable keys with BLF/presence for fast call handling

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- SIP accounts/lines: 4
- Display: Backlit monochrome LCD (approx. 128x64)
- Ethernet: 2x RJ-45 10/100 Mbps (integrated switch)
- PoE: IEEE 802.3af Class 2 (optional external adapter)
- Audio codecs: G.711a/u, G.729a, G.726, G.722 (wideband)
- Audio features: Full-duplex speakerphone, echo cancellation, adjustable volumes
- Headset: RJ-9 port; optional EHS via adapter
- Call features: BLF/presence, hold/transfer/3-way conference, call park/pickup, speed dial
- Security: SIP digest authentication, HTTPS provisioning
- Network/QoS: 802.1Q VLAN tagging, 802.1p/DSCP, DHCP/static IP
- Provisioning: TFTP/HTTP/HTTPS with XML-based profiles
- Mounting: Desktop stand; wall-mountable

FAQs

Q: How many lines does this model support?
A: It supports up to 4 SIP accounts/lines.

Q: Does it support BLF keys?
A: Yes, it supports BLF/presence on programmable keys with compatible SIP platforms.

Q: Is PoE supported?
A: Yes, it supports IEEE 802.3af PoE Class 2.

Q: Can I use my wired headset?
A: Yes, it includes an RJ-9 headset port and supports EHS via an optional adapter.

Q: What provisioning methods are available?
A: It supports TFTP, HTTP, and HTTPS with XML-based configuration profiles.

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