[Asterisk-Users] Current status on _outgoing_ Swedish/Dutch DTMF
CLIP for TDM400 FXS interfaces?
Josef Seger
josef.seger at mail.seger.nu
Sat Nov 19 11:31:00 MST 2005
Hi,
There is a significant number of persons who requires this function (FXS CallerID for TDM400, Swidish style DTMF tones after polarityreversal and before the first ringtone).
Is there anyone who has more information about this issus? Mabye there is a working beta
of this for Asterisk 1.2?
Best Regards
Josef Seger
-----Original Message-----
From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Werner Johansson
Sent: den 3 september 2005 17:05
To: asterisk-users at lists.digium.com
Subject: [Asterisk-Users] Current status on _outgoing_ Swedish/Dutch DTMF CLIP for TDM400 FXS interfaces?
Hi all,
I have been looking at the code for both the zaptel driver (wctdm.c/wcfxs.c) and the asterisk channel driver (chan_zap.c) trying to figure out how much of this that has been implemented. So far I can see that the current stable
1.0.9.1 zaptel driver don't have the SETPOLARITY ioctl that would be required to properly signal the Swedish/Dutch CLIP, but the 1.2 beta1 has this support..
Moving forward from that I then look at the 1.2 beta1 chan_zap code, but nothing's in there could possibly give us any DTMF tones. I have seen some bugs being posted and closed (particulary this one:
http://bugs.digium.com/view.php?id=3866). After a bit of experimenting with that code and the fxstest.c code supplied with zaptel I have something that actually reverses the polarity of the idle line, waits, sends the digits, waits again and reverses polarity back to normal - this results in fully working CallerID using my stand-alone CID display and a Gigaset4010 DECT phone which unfortunately doesn't understand FSK CLIP/CNIP. I have also checked the signal with my scope and it looks just like my landline CLIP procedure (and working equally well.. :))
The code is provided at the end of this mail. After browsing the 1.2beta1 release I also downloaded the latest bleeding edge cvs and verified that these parts of the code looked exactly like 1.2beta1.
There are a few questions I have though:
Why do I have to continuously set the ProSLIC register 64 to 6 (active reverse transmission) to get the tones onto the line if I'm onhook? Only doing it once just after reverse polarity ioctl doesn't do the trick... The idea with SETPOLARITY in addition with going OFFHOOK with ZT_HOOK should be the same, right? It works if I take the phone offhook though, then I can hear the tones even without having to force the register to 6. Next question would be if there's a better way to know that the "dialing" is complete, especially if this is to be embedded into the chan_zap code, it would be nice to have a cleaner solution?
Is this something for the dev list as well, I guess there's some interest in getting this to work in the stock Asterisk code, even though we're not that many people requiring this as it seems..? Should I reopen the bug?
I'm thankful for any input in this matter..
Regards,
Werner
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include "zaptel.h"
#include "tonezone.h"
#include "wctdm.h"
static int tones[] = {
ZT_TONE_DIALTONE,
ZT_TONE_BUSY,
ZT_TONE_RINGTONE,
ZT_TONE_CONGESTION,
ZT_TONE_DIALRECALL,
};
int main(int argc, char *argv[])
{
ZT_DIAL_OPERATION dop;
struct wctdm_regop regop;
struct zt_dialparams dps;
int fd,ctlfd,toneduration;
int res;
int x;
if (argc < 3) {
fprintf(stderr, "Usage: fxstest <zap device> <cmd>\n"
" where cmd is one of:\n"
" stats - reports voltages\n"
" regdump - dumps ProSLIC registers\n"
" tones - plays a series of tones\n"
" polarity - tests polarity reversal\n"
" ring - rings phone\n");
exit(1);
}
// Code added by wj at xnk.nu to set the default tone length to shorten the time it takes to transmit DTMF CLIP // 25ms is enough for me but according to specs 40 _should_ be understood as a valid digit, YMMV.
ctlfd = open("/dev/zap/ctl", O_RDWR);
if (ctlfd == -1) {
fprintf(stderr,"Couldn't open zapctl!\n");
}
toneduration = 40;
if (toneduration > -1) {
dps.dtmf_tonelen = dps.mfv1_tonelen = toneduration;
res = ioctl(ctlfd, ZT_SET_DIALPARAMS, &dps);
if (res < 0) {
fprintf(stderr,"Couldn't dialparms!\n");
}
}
close(ctlfd);
// End of code added - wj at xnk.nu
fd = open(argv[1], O_RDWR);
if (fd < 0) {
fprintf(stderr, "Unable to open %s: %s\n", argv[1], strerror(errno));
exit(1);
}
if (!strcasecmp(argv[2], "ring")) {
fprintf(stderr, "Ringing phone...\n");
x = ZT_RING;
res = ioctl(fd, ZT_HOOK, &x);
if (res) {
fprintf(stderr, "Unable to ring phone...\n");
} else {
fprintf(stderr, "Phone is ringing...\n");
sleep(2);
}
} else if (!strcasecmp(argv[2], "polarity")) { // Code modified by wj at xnk.nu to not only reverse polarity but also send an example DTMF CLIP
fprintf(stderr, "Sending DTMF CLIP...\n");
x = 1;
res=ioctl(fd, ZT_SETPOLARITY, &x);
if (res) {
fprintf(stderr, "Unable to set reverse polarity...\n");
}
x = ZT_OFFHOOK;
res=ioctl(fd, ZT_HOOK, &x);
if (res) {
fprintf(stderr, "Unable to go offhook...\n");
}
fprintf(stderr, "Polarity should be reversed now...\n");
dop.op = ZT_DIAL_OP_REPLACE;
// if (ast->cid.cid_num) {
snprintf(dop.dialstr, sizeof(dop.dialstr), "TwD1234567890CC");
// } else {
// snprintf(p->dop.dialstr, sizeof(p->dop.dialstr),
"TB00Cw");
// }
if (ioctl(fd, ZT_DIAL, &dop)) {
x = ZT_ONHOOK;
ioctl(fd, ZT_HOOK, &x);
fprintf(stderr, "Bad status from DIAL!\n");
}
fprintf(stderr, "Waiting for dial completion...\n");
x=1;
while(x!=0) {
// This sets the line in reverse mode with audio transmission!
regop.reg=64;
regop.val=6;
res = ioctl(fd, WCTDM_SET_REG, ®op);
ioctl(fd,ZT_DIALING,&x);
}
dop.dialstr[0] = '\0';
// Go back to reverse mode without audio transmission
regop.reg=64;
regop.val=5;
res = ioctl(fd, WCTDM_SET_REG, ®op);
x = 0;
res=ioctl(fd, ZT_SETPOLARITY, &x);
if (res) {
fprintf(stderr, "Unable to set normal polarity...\n");
}
fprintf(stderr, "Polarity should be forward...\n");
// After this normal ringing can commence // End of modified polarity example - wj at xnk.nu
} else if (!strcasecmp(argv[2], "tones")) {
int x = 0;
x = ZT_OFFHOOK;
res = ioctl(fd, ZT_HOOK, &x);
for (;;) {
res = tone_zone_play_tone(fd, tones[x]);
if (res)
fprintf(stderr, "Unable to play tone %d\n", tones[x]);
sleep(3);
x=(x+1) % (sizeof(tones) / sizeof(tones[0]));
}
} else if (!strcasecmp(argv[2], "stats")) {
struct wctdm_stats stats;
res = ioctl(fd, WCTDM_GET_STATS, &stats);
if (res) {
fprintf(stderr, "Unable to get stats on channel %s\n", argv[1]);
} else {
printf("TIP: %7.4f Volts\n", (float)stats.tipvolt / 1000.0);
printf("RING: %7.4f Volts\n", (float)stats.ringvolt / 1000.0);
printf("VBAT: %7.4f Volts\n", (float)stats.batvolt / 1000.0);
}
} else if (!strcasecmp(argv[2], "regdump")) {
struct wctdm_regs regs;
int numregs = NUM_REGS;
memset(®s, 0, sizeof(regs));
res = ioctl(fd, WCTDM_GET_REGS, ®s);
if (res) {
fprintf(stderr, "Unable to get registers on channel %s\n", argv[1]);
} else {
for (x=60;x<NUM_REGS;x++) {
if (regs.direct[x])
break;
}
if (x == NUM_REGS)
numregs = 60;
printf("Direct registers: \n");
for (x=0;x<numregs;x++) {
printf("%3d. %02x ", x, regs.direct[x]);
if ((x % 8) == 7)
printf("\n");
}
if (numregs == NUM_REGS) {
printf("\n\nIndirect registers: \n");
for (x=0;x<NUM_INDIRECT_REGS;x++) {
printf("%3d. %04x ", x, regs.indirect[x]);
if ((x % 6) == 5)
printf("\n");
}
}
printf("\n\n");
}
} else if (!strcasecmp(argv[2], "setdirect") ||
!strcasecmp(argv[2], "setindirect")) {
struct wctdm_regop regop;
int val;
int reg;
if ((argc < 5) || (sscanf(argv[3], "%i", ®) != 1) ||
(sscanf(argv[4], "%i", &val) != 1)) {
fprintf(stderr, "Need a register and value...\n");
} else {
regop.reg = reg;
regop.val = val;
if (!strcasecmp(argv[2], "setindirect")) {
regop.indirect = 1;
regop.val &= 0xff;
} else {
regop.indirect = 0;
}
res = ioctl(fd, WCTDM_SET_REG, ®op);
if (res)
fprintf(stderr, "Unable to get registers on channel %s\n", argv[1]);
else
printf("Success.\n");
}
} else
fprintf(stderr, "Invalid command\n");
close(fd);
return 0;
}
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