UC Collabing - Learning Never

關於VoIP，思科，CUCM，CUC，UCCX，IM＆amp; P，網關，SME，Asterisk，Mediasense，WebEx，Lync，Skype for Business，IP電話，語音郵件，IVR，VMWare，SIP，H.323，MGCP的博客， SCCP，ISDN，E1，T1，PRI。