[Asterisk-Users] DID trunk suggestions for Asterisk

[Steven Critchfield]

On Mon, 2004-10-11 at 15:06 -0400, Leslie Chan wrote:
> Hi Steve,
> 
> I posted a similar requirement to Digium and they confirmed that TDM400P
> does not support DID on analog trunk.
> 
> Am I missing something in between?

For what you list below, you would do well to bring in all your virtual
companies via a PRI so you can get and set your callerid plus DID
information. Then connect out to wherever it is your clients are doing
their business with either analog lines or VoIP lines.

> > [lchan at autoroute.net - Fri Oct 08 20:49:05 2004]:
> >
> > Dear All,
> >
> > I attended the Astricon in Atlanta and am very impressed with *. We
> >    are an Internet Solutions Provider and Intel certified Solutions
> >    Consulting company. Needless to say, we had Dialogic products in
> >    mind running * prior to attending the conference. Now, I believe
> we
> >    will get better support on * issues from Digium.
> >
> > We like to build and test * with a model company which houses 3
> >    individual operations. We have 2 Centrix lines which our Telco is
> >    doing all the PBX functions for us, such as line hunting, voice
> >    mail as well as auto answering. We also have one separate line
> for
> >    in/out faxes.
> >
> > We want to build a virtual PBX that answers to incoming calls
> >    according to calling IDs. That is if a caller calls company A
> PSTN
> >    number, * will answer with the ID of company A and goes deep into
> >    other functions of * like a regular PBX. If a caller calls
> company
> >    B PSTN number, then comapny B auto attendant will come on. And
> the
> >    same goes to comapny C.
> >
> > On the FXS side, we can either use SIP phones or connect to analog
> >    phones. There will be 4 desk sets for 4 employees.
> >
> > We intend to cancel the Centrix lines and switch to 2 POTs lines
> >    connecting to a TDM402B and order DIDs from Telco for the 3
> >    companies. We then will use 4 SIP phones for the 4 employees.
> >
> > Should I buy TDM422B to connect to 2 analog phones and 2 SIP phones
> or
> >    TDM02B with 4 SIP phones? One thing I am not sure is where is the
> >    line hunting done? Does * take care of line hunting if the first
> >    line is occupied and the next incoming call goes to the second
> >    line?
> >
> > Regards,
> > Les
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com]On Behalf Of Steve
> Underwood
> Sent: Sunday, October 10, 2004 9:35 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] DID trunk suggestions for Asterisk
> 
> 
> Hi Joe,
> 
> In hardware terms a TDM400P does what you need. I don't know if anyone
> has implemented the software support for using it in this way, though.
> 
> Regards,
> Steve
> 
> 
> Joe Cunningham wrote:
> 
> >
> > I have a client that has 4 analog DID trunks which are wink start
> > lines and are the incoming lines.  Each  trunk line has 20 DIDs
> > assigned.  We are in the process of migrating them off their current
> > system to Asterisk.   We need a way to get these DID trunks into
> > Asterisk so we get the DID information to route the calls.  While the
> > DID setup self  is not the issue.  The issue is I am looking for an
> > inexpensive way to get these trunks directly into the Asterisk box.
> > Since they are analog DID we need to supply the voltage to the CO.  I
> > have looked at using something like a BrookTrout card but these are
> > costly.   Also looked using something like the DID-200 to convert the
> > DID trunk to loop-start again these have a high cost.  I also
> > considered having the client order and switch to PRI and all the
> > advantages this brings however I think this might be overkill for this
> > client. Not sure of the month costs with this I was thinking depending
> > on the term this may run about $500 per month.  I also thought about
> > BRI but searching  Google and such first it looks like you can't do
> > DID over BRI.
> > So I guess my question is based on the above have I missed something
> > and is there any inexpesive way to bring these DID trunks right into
> > Asterisk keeping the current analog DID trunks?  If so what hardware
> > is required?
> 
> 
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-- 
Steven Critchfield <critch at basesys.com>