hi,a callmanger with ver 4.2 is working with witness 7.7.1 , the cm will be upgraded to 7.1 , will the witness work or not

hi is there any recommended tools for voip Readiness Assesment

hii have unity 4.0(5), i need to make calls sent directly to e.g 9xxxxxx(a mobile number) during 9am-3pm but after that i need the caller to leave a messagei have tried 2 ways for this 1-in the subscriber made in standard greeting , to go to subuscri...

hi,i have a gatekepeer with a callmanger and cme registered to it with the same tech prefix 1# and all in same zone, i have added zone prefix on the gkmy question is do i have to send 1# or 1#and the zone perfix or just the zone prefix in the calls b...

hi,can anyone explain to me how the transcoder is used, if i have 2 devices over the wan one talks g711 (e.g a sip trunk, or an ipcc) and the other talks g729 (normal ip phone) , where shall i put the transcoder and apply it to which device pool