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Product details - Product description cisco ip phone 8851 voip phone product type voip phone compatible platforms cisco business edition 6000 main features multiple voip protocol support, integrated ethernet switch voip protocols sip, rtcp, rtp, srtp, sdp voice codecs g.722, g.729a, g.711u, g.711a, ilbc, isac lines supported 5 lines intercom yes speakerphone yes digital duplex call services voice mail, caller id, call waiting, call forwarding, call transfer, call hold, message waiting capability display lcd display colour yes network ports qty 2 x ethernet 10base t 100base tx 1000base t compatible software cisco unified communications manager 8.5.1 or later, cisco hosted collaboration solution, cisco unified communications manager express 10.0 or later manufacturer warranty 1 year warranty |
