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- Path: newsbf02.news.aol.com!not-for-mail
- From: qualitec@aol.com (Qualitec)
- Newsgroups: comp.dcom.modems
- Subject: Re: Digital PBX lines and 28.8 modems
- Date: 28 Jan 1996 20:01:50 -0500
- Organization: America Online, Inc. (1-800-827-6364)
- Sender: root@newsbf02.news.aol.com
- Message-ID: <4eh69u$3av@newsbf02.news.aol.com>
- References: <4e9lgl$c88_002@dialup.winternet.com>
- Reply-To: qualitec@aol.com (Qualitec)
- NNTP-Posting-Host: newsbf02.mail.aol.com
-
- >Recently, out of ignorance, I bought a 28.8 USR Sportster internal for
- >use in an office. It was to connect to a spare jack for our digital
- >PBX phone system. The modem was dead -- it would talk to the
- >computer, but it could not detect a dial tone, etc. I finally figured
- >out that the USR won't work on anything but an analog line.
- >
- >Is this the exception or the rule? We had to relocate that modem, but
- >my boss wants a modem at that original location. Must we shoot for
- >14.4s instead?
- >
- >Please advise on modem options. Changing the phone jack to analog is
- >not an option *yet*.
-
- Digital phone lines are very different from analog phone lines. Analog
- phone lines, like we all have at home, are based on electrical current and
- digital phone lines are based on 0s and 1s. They are not compatible.
- Some PBX phones have a jack on them to allow for an external modem, just
- like the phones now in many hotels. If your's doesn't it may be an
- available option from your PBX manufacturer or you may be able to add a
- small 'option box' between the wall jack and the phone, again from the PBX
- Manufact., to enable you to connect a modem.
-
- There are other solutions using the excisting wires in your wall jack to
- give you an additional phone line. If any one needs info, email me.
-
- Rog.
-
- ===================================================
- Roger Otterson
- Qualitec ( A Southern California Systems Integration Company)
- 10717 Sorrento Valley Road, #200
- San Diego, CA 92121
- (619) 622-1220
- qualitec@aol.com
-