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From: franks@hpuamsa.neth.hp.com (Frank Slootweg CRC)
Newsgroups: comp.sys.hp
Subject: Re: Probs w/ 9000/800 Serial Lines
Message-ID: <28510039@hpuamsa.neth.hp.com>
Date: 1 May 91 14:05:51 GMT
References: <1991Apr26.195408.659@dkwgate.uucp>
Organization: HP-Sales Office-The Netherlands
Lines: 11

See MODEM(7) for a description of CCITT and simple mode. In general you
should use a simple mode device file (even in Europe and even if you
have a modem which is CCITT compliant). In our experience in only a very
few cases (much less than 5%) CCITT mode is required. In all other cases
it creates more problems then it solves. The reason: Most "CCITT
compliant" modems are only compliant if you specifically configure them
to be so, the defaults are often not CCITT compliant.

Hope this helps.

Frank Slootweg, HP, Dutch Customer Response Center.