covert@covert.enet.dec.com (John R. Covert) (03/09/91)
> You need one of the Motorola terminals due to some "special codes"
Well, a friend of mine used to have service which used the Motorola
terminals, and I was able to call into their system on a 300 bps line
at 7E1 with local echo (often inappropriately called half duplex).
After the system answers, a carriage return gets the "id=" prompt, to
which I reply "M" (upper case). The system then prompts for Pager ID,
at which point I enter the seven digit pager number. The system then
prompts for Message, at which point I can enter the message,
correcting with ^H. The system then prompts for "Another page?".
johnandrew@herald.usask.ca (Derek Andrew) (03/16/91)
From article <telecom11.189.3@eecs.nwu.edu>, by covert@covert.enet. dec.com (John R. Covert): >> You need one of the Motorola terminals due to some "special codes" > Well, a friend of mine used to have service which used the Motorola > terminals, and I was able to call into their system on a 300 bps line > at 7E1 with local echo (often inappropriately called half duplex). > After the system answers, a carriage return gets the "id=" prompt, to > which I reply "M" (upper case). The system then prompts for Pager ID, > at which point I enter the seven digit pager number. The system then > prompts for Message, at which point I can enter the message, > correcting with ^H. The system then prompts for "Another page?". You are both correct. The first implementation of alphanumeric paging at our location worked similar to the above method. It was upgraded and now you must enter special codes and compute a checksum for each message. It is too inconvenient to try to compute and enter this checksum from an ascii terminal. Derek Andrew, Manager of Computer Network & Technical Services University of Saskatchewan, Saskatoon Saskachewan, Canada, S7N 0W0 Andrew@Sask.USask.CA, +1-306-966-4808, 52 11 23N 106 48 48W ...and they that weave networks, shall be confounded. - Isaiah 19:9
daryl@tcomeng.uucp (Daryl Jones) (03/18/91)
Most modern common carriers which provide alphanumeric paging service
offer at least three modes of access:
1. IXO Protocol. This is a simple protocol frequently used for
low-volume dial-up access to the paging terminal. 1200,7,e,1
is usually used. A simple checksum must be sent at the
end of the message.
2. TAS Protocol. TAS stands for Telephone Answering Service. This
is a real simple technique intended for users who access the
paging terminal with a dumb terminal. The user is prompted for
pager phone number and the alphanumberic message.
3. TNPP Protocol. This is the protocol that is most suited for
interfacing a paging terminal with a customer's computer. A
checksum calculation is required. The protocol provides for
destination addressing, so that the paging terminal which
receives a TNPP transaction from a customer may pass the
transaction off to another paging terminal, possible at a
faw-away location. TNPP stands for Telocator Network Protocol.
Telocator is the name of a trade association for radio common
carriers.
At least a few Internet and uucp sites have mail addresses that will
forward to alphanumeric paging systems. This is a good technique for
automatically notifying a system administrator of critical problems
etc. It also provides a convenient method for easily generating an
alphanumeric page.
Telecommunications Engineering Associates
Daryl Jones, KA6VEP 409 Wildwood Drive
So. San Francisco, CA 94080
{decwrl,pacbell}!tcomeng!daryl Phone: (415) 871-4200