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New Member

cisco pbx

Hi,

How does the connection between a cisco call manager and the cisco pbx works and how does the cisco phone central work in general?

can already existing pstn and isdn lines be connected to a call manager?

the reason why i'm asking this question is because I am wondering how a local network with a few ip phones and a callmanager gets connnected to "the world" how phonecalls with regular phones can be received and made.

anyone who can give me some more info on this topic?

thanks in advance

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3 REPLIES
Cisco Employee

Re: cisco pbx

exactly what do you mean when you say "cisco pbx"???

you use a gateway using H323, MGCP to control a T1/E1/FXO connection or a sip trunk to communicate to the PSTN

HTH

java

if this helps, please rate

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
New Member

Re: cisco pbx

And what could this gateway be? and where is it located? between the callmanager and the wan?

Cisco Employee

Re: cisco pbx

a router, CMM module

CCM - GW - PSTN

i'd recommend you looking some telephony fundamentals on google to understand this

HTH

java

if this helps, please rate

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
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