SPA508G Cisco 8-Line IP Phone

The SPA508G is a Cisco 8-line IP phone from the Small Business SPA 500 Series, a business-class SIP phone with a two-port Ethernet switch and 802.3af Power over Ethernet. It connects directly to an Internet telephone service provider or to an IP PBX, and it also works with SPCP on the Cisco Unified Communications 500 Series for Small Business.

The display is a 128 x 64 pixel monochrome backlit LCD. Dedicated illuminated buttons cover mute, headset and speakerphone, and the phone has a four-way navigation key, a voicemail light, a hold button and a standard 12-key pad. The handset connects by an RJ-9 jack, and the headset jack is 2.5 mm. Wideband audio and a speakerphone are standard, and the voice codecs include G.711, G.726, G.729A and G.722.

Two 10/100BASE-T RJ-45 ports let a computer share the same cable run. Power comes from 802.3af PoE, or from the optional PA100 5 VDC power adapter (100-240 V AC input), which is ordered separately. The phone measures 8.42 x 8.35 x 1.73 in (214 x 212 x 44 mm) and weighs 2.0 lb (0.9 kg). The box holds the phone, handset and stand, a handset cord, an RJ-45 Ethernet cable and a CD.

Up to two Cisco SPA500S expansion modules add up to 64 extra buttons in SIP mode. Within the SPA 500 line, the SPA508G has 8 voice lines, compared with 4 on the SPA504G and 12 on the SPA509G. For analog telephone adapters, see the SPA112 2-port phone adapter or the ATA191-K9 2-port analog telephone adapter, and browse more voice products in Cisco misc.

Related part: SPA504G Cisco 4-Line IP Phone