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List: hylafax
Subject: Re: [hylafax-users] Easy way to tell if a modem supports DID
From: "Nick Couchman" <Nick.Couchman () seakr ! com>
Date: 2008-09-21 19:14:22
Message-ID: 48D648AE.87A6.0099.1 () seakr ! com
[Download RAW message or body]
Phone systems are not my area of expertise, so you'll have to forgive me if my \
questions sound ignorant. The only modem I've been able to find that specifically \
says it supports DID is a MultiTech modem.
I've been told by my PBX vendor that my phone system does support DID signaling on \
analog lines. I've already configured my fax system for shielded DTMF signaling for \
fax "extensions" to route faxes, so I know I can do that - I was specifically \
wondering about a modem that supports DID. The MultiTech one is listed at $400. \
That's not a huge amount, but more than I have a budget for right now, so I was \
trying to find something a little less expensive. Anyway, I still would appreciate \
recommendations for DID-enabled modems if anyone has them.
-Nick
> > > On 2008/09/20 at 14:56, Lee Howard <faxguy@howardsilvan.com> wrote:
Nick Couchman wrote:
>
> I was wondering if anyone knows if there's an easy way to tell from
> modem spec sheets whether or not a modem supports DID signaling.
>
You would know without needing to ask. Really.
> Do most of the ones that support this functionality say it, is it
> part of another standard, etc.?
>
No, most modems do not support DID primarily because DID is not an
option on a POTS line.
> Anyone have any recommendations for a modem that does support this?
>
You would need a special line that provides DID in order to use a modem
that supports DID. The modem would need to correspond with the line,
and thus providing a list for all of them would be further confusing to you.
> Also, for the modems I do have, is there a command I can issue to the
> modem that will tell me whether or not the modem supports this?
No.
> I'm having trouble figuring out whether my phone system is not
> sending down DID information or if the modem is not receiving it, and
> if I could determine if the modem supports it or not, that would help
> me in figuring out what I should look at first.
Hrmm... "my phone system". Ah, I suspect that you're talking about DTMF
digits being sent after the call goes off-hook. That's technically not
DID... although your phone system documentation may refer to it as such
simply because the DTMF digits correspond to the DID received by it.
Search for "SHIELDED_DTMF" in 'man hylafax-config'
(http://hylafax.sourceforge.net/man/hylafax-config.php). In the
HylaFAX+ version of that man page there's even an example there that
probably will work with your USR modem.
Thanks,
Lee.
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<DIV>Phone systems are not my area of expertise, so you'll have to forgive me if my \
questions sound ignorant. The only modem I've been able to find that \
specifically says it supports DID is a MultiTech modem.</DIV> <DIV> </DIV>
<DIV>I've been told by my PBX vendor that my phone system does support DID signaling \
on analog lines. I've already configured my fax system for shielded DTMF \
signaling for fax "extensions" to route faxes, so I know I can do that - I was \
specifically wondering about a modem that supports DID. The MultiTech one is \
listed at $400. That's not a huge amount, but more than I have a budget for \
right now, so I was trying to find something a little less expensive. Anyway, I \
still would appreciate recommendations for DID-enabled modems if anyone has \
them.</DIV> <DIV> </DIV>
<DIV>-Nick<BR><BR>>>> On 2008/09/20 at 14:56, Lee Howard \
<faxguy@howardsilvan.com> wrote:<BR></DIV> <DIV style="PADDING-LEFT: 7px; \
MARGIN: 0px 0px 0px 15px; BORDER-LEFT: #050505 1px solid; BACKGROUND-COLOR: \
#f3f3f3">Nick Couchman wrote:<BR>><BR>> I was wondering if anyone knows if \
there's an easy way to tell from <BR>> modem spec sheets whether or not a modem \
supports DID signaling.<BR>><BR><BR>You would know without needing to ask. \
Really.<BR><BR>> Do most of the ones that support this functionality say it, \
is it <BR>> part of another standard, etc.?<BR>><BR><BR>No, most modems do not \
support DID primarily because DID is not an <BR>option on a POTS \
line.<BR><BR>> Anyone have any recommendations for a modem that does support \
this?<BR>><BR><BR>You would need a special line that provides DID in order to use \
a modem <BR>that supports DID. The modem would need to correspond with the \
line, <BR>and thus providing a list for all of them would be further confusing to \
you.<BR><BR>> Also, for the modems I do have, is there a command I can issue to \
the <BR>> modem that will tell me whether or not the modem supports \
this?<BR><BR>No.<BR><BR>> I'm having trouble figuring out whether my phone \
system is not <BR>> sending down DID information or if the modem is not receiving \
it, and <BR>> if I could determine if the modem supports it or not, that would \
help <BR>> me in figuring out what I should look at first.<BR><BR>Hrmm... "my \
phone system". Ah, I suspect that you're talking about DTMF <BR>digits being \
sent after the call goes off-hook. That's technically not <BR>DID... although \
your phone system documentation may refer to it as such <BR>simply because the DTMF \
digits correspond to the DID received by it.<BR><BR><BR>Search for "SHIELDED_DTMF" in \
'man hylafax-config' \
<BR>(http://hylafax.sourceforge.net/man/hylafax-config.php). In the \
<BR>HylaFAX+ version of that man page there's even an example there that <BR>probably \
will work with your USR \
modem.<BR><BR>Thanks,<BR><BR>Lee.<BR><BR><BR>____________________ HylaFAX(tm) Users \
Mailing List _______________________<BR> To subscribe/unsubscribe, click <A \
href="http://lists.hylafax.org/cgi-bin/lsg2.cgi">http://lists.hylafax.org/cgi-bin/lsg2.cgi</A><BR>On \
UNIX: mail -s unsubscribe hylafax-users-request@hylafax.org < /dev/null<BR> \
*To learn about commercial HylaFAX(tm) support, mail sales@ifax.com.*<BR><BR></DIV> \
<DIV><P><HR> This e-mail may contain confidential and privileged material for the \
sole use of the intended recipient. If this email is not intended for you, or you \
are not responsible for the delivery of this message to the intended recipient, \
please note that this message may contain SEAKR Engineering (SEAKR) \
Privileged/Proprietary Information. In such a case, you are strictly prohibited from \
downloading, photocopying, distributing or otherwise using this message, its contents \
or attachments in any way. If you have received this message in error, please notify \
us immediately by replying to this e-mail and delete the message from your mailbox. \
Information contained in this message that does not relate to the business of SEAKR \
is neither endorsed by nor attributable to SEAKR. </P></DIV>
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