IP Telephony and Phones

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We have a user that would like to change the call forward from the outside world, but using a Cell phone to do it. this is only if they forget and go home for the day. It will switch from one pager to the other each week.  They do not have VPN access...

ma75 by Level 1
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Hii, In this moment I have a virtual machine with Unity 8.6.2 installed and I have to upgrade to 10.5. Any information about the steps or anyone ho finis the upgrade?Any documentation/links will more then OK. Thanks a lot 

gabiulici by Level 1
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dears i have MCS 7828-I4  server  and i already  install  call manager 7.1 now i need to upgrade to 8.6  is this server support or notand i need to know about  lic calculation  its steel the same or notthank you  

Dears,i created a sip trunk between CUCM 8.5 and Avaya system. Avaya phones uses encrypted calling at their end locally between avaya IP Phones , Cisco IP Phones doesn't have any security (encryption) on CUCM ,,  both parties have disabled security o...