The Cisco SPA504G provides comprehensive interoperability with Cisco UC300 and UC500 systems as well with SIP compatible equipment from VoIP infrastructure leaders.
Cisco SPA504G Features
Pixel based 128 x 64 monochrome LCD display
4 voice lines and 4 independent SIP registrations
4 soft key buttons and 4-way navigation cluster
Supports wideband audio
Fixed features include mute, hold, headset, settings, and volume control
Voicemail retrieval button and message waiting light
Built-in high quality microphone, full-duplex speakerphone, integrated 2.5 mm headset jack
2 Ethernet LAN ports with integrated switch (100BASE-T)