the router handles signaling. --
RFC 1149 Compliant. ""Tom Scott"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Having asked about VoMPLS transcoding from analog voice to MPLS > frames without intermediate IP packets, my lab partner noticed > that the CVOICE book (edited by Steve McQuerry etal) discusses > VoFR and VoATM (chapters 8 and 9): > > > analog +-------+ +-------+ analog > phone A1 ---- | | ATM | | ---- phone B1 > ... | rtr A | ---- or FR ---- | rtr B | ... > analog ---- | | cloud | | ---- analog > phone Ai +-------+ +-------+ phone Bj > > > Are we reading this correctly, that the analog phones plug into > the cisco routers and the analog voice traffic is transformed > into FR frames or ATM cells, with no IP packets in between? > It makes sense to do it that way in some applications. For > example, if you have a call center in a distant suburb across > a LATA line or two, that services a metropolitan area, then > you'd want to bypass long-distance charges if at all possible. > > This seems like an easy way to do it. But what handles the > call control? Does the router do that? Some of the diagrams > in the CVOICE book have no PBX (or CCM) in them. Does the > router translate the call-control signaling from the analog > phone into corresponding pass-through signaling in the ATM/FR > packets (sort of like user-to-user signaling that could be > passed through SS7, in this case the users are the routers > and the network is the ATM/FR switches)? > > -- TT Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=53576&t=53567 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
