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From: bamford@ihlpg.ATT.COM (Harold E. Bamford)
Newsgroups: unix-pc.general,comp.sys.att
Subject: Re: switching back from dial pulsing to touch tone
Message-ID: <4586@ihlpg.ATT.COM>
Date: 8 Jan 88 17:23:37 GMT
References: <1061@wrcola.UUCP>
Reply-To: bamford@ihlpg.UUCP (Harold E. Bamford)
Organization: AT&T Bell Laboratories - Naperville, Illinois
Lines: 57
Keywords: how to switch, dial pulse, touch tone

In article <1061@wrcola.UUCP> kathy@wrcola.UUCP (Kathy Vincent) writes:
>...  How can this guy reset his computer so that it will
>dial touch tones instead of pulses?

I ran into this problem and put "phone2tone" into /etc/rc.  Here is the
source.  Please don't offer a lot of criticism on style or flexibility;
this is offered as is with no warranty of any sort.  But it worked for
me...

/**********************************************************************
 * EMACS_MODES: c !fill tabstop=4
 *
 * This program sets the modem to tone dialing rather than the power-up
 * default of pulse dialing.
 **********************************************************************/
#include <stdio.h>
#include <fcntl.h>
#include <sys/phone.h>
#include <errno.h>

main(argc,argv)
int argc;
char *argv[];	/* needed for program name in error messages */
{
	int fd;		/* file descriptor from open() */
	struct updata data;	/* defined in sys/phone.h */

	/* Open up the modem, so that ioctl() can be called */
	if((fd = open("/dev/ph1",O_RDWR|O_NDELAY)) <= 0) {
		fprintf(stderr,"%s: open failed, fd=%d errno=%d\n",
			argv[0],fd,errno);
		exit(errno);
	}
	
	/* Get the current parameters */
	if(ioctl(fd,PIOCGETP,&data) < 0) {
		fprintf(stderr,"%s: ioctl(PIOCGETP) failed, errno=%d\n",
			argv[0],errno);
		exit(errno);
	}
	
	data.c_lineparam &= ~(PULSE);	/* turn off pulse dialing */
	data.c_lineparam |= DTMF;	/* turn on tone dialing */

	if(ioctl(fd,PIOCSETP,&data) < 0) {
		fprintf(stderr,"%s: ioctl(PIOCSETP) failed, errno=%d\n",
			argv[0],errno);
		exit(errno);
	}

	close(fd);
	exit(0);
}
-- 
				Harold Bamford, AT&T Bell Labs
				IHP 2F-524 (312) 416-7397
				ihnp4!ihlpg!bamford