[A*UG] PRI and line sharing

[Jim Freeze]

Hi Brett

On Tue, Jul 28, 2009 at 11:40 PM, Brett Nemeroff<brett-aaug at nemeroff.com> wrote:
> Jim,
> In general, any resource can be shared between servers. However you need to
> consider the impact it will have on the bandwidth.
> So if server A has the PRI, but server B has the phones, the calls go from
> the provider INTO Server A, then OUT of Server A (doubling the bandwidth
> usage at that site) then INTO Server B.
> It's done for inbound calls much in the same way you do it for outbound
> calls. For inbound calls you simply dial the other server (so you'll need a
> sip/iax connection between the two servers)
> With more modern systems, you don't normally have to worry about hunt groups
> and such. Unless of course you actually have analog hunt groups. If you do,
> the same applies, but you need some way to identify which inbound call is
> for which server. For analog lines, this is usually either done by an IVR
> prompting the user like "Push 1 for sales, push 2 for support" where sales
> could be local, but support may be Server B. Or you have to create separate
> hunt groups for each Server.
> I'm not sure if that helps or confuses things. ;)

In this case (OP may have been unclear), there is a single Asterisk
Server. This may boil down to my lack of understanding (and my
twtelecom rep). Is there such thing as a 'hunt' group on a PRI?

Say I have 10 digital lines with 2 DiDs. One DiD for each office. When
a call comes in, how is it presented to asertisk? In an analog system
using TDM, there is a one-to-one correspondence with phone number and
physical line. How does this work with digital?

On a PRI based system, if 5 people call number A, I'm guessing there
is no 'hunting' since there does not have to be a number for each
line.

Jim


-- 
Jim Freeze