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freetdm: Added CAS hangup bit checking to the E&M signaling module

This commit is contained in:
Moises Silva 2013-10-22 00:52:59 -04:00
parent 2b3c98b069
commit 271eda310e
1 changed files with 19 additions and 0 deletions
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19
libs/freetdm/src/ftmod/ftmod_analog_em/ftmod_analog_em.c
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@ -483,7 +483,9 @@ static void *ftdm_analog_em_channel_run(ftdm_thread_t *me, void *obj)
ftdm_sigmsg_t sig;
int cas_bits = 0;
uint32_t cas_answer = 0;
uint32_t cas_hangup = 0;
int cas_answer_ms = 500;
int cas_hangup_ms = 500;
FILE *ringback_f = NULL;
ftdm_bool_t digits_sent = FTDM_FALSE;
@ -641,6 +643,23 @@ static void *ftdm_analog_em_channel_run(ftdm_thread_t *me, void *obj)
case FTDM_CHANNEL_STATE_RING:
{
ftdm_sleep(interval);
if (ftdmchan->state == FTDM_CHANNEL_STATE_UP && cas_answer) {
cas_bits = 0;
ftdm_channel_command(ftdmchan, FTDM_COMMAND_GET_CAS_BITS, &cas_bits);
if (!(state_counter % 5000)) {
ftdm_log_chan(ftdmchan, FTDM_LOG_DEBUG, "CAS bits: 0x%X\n", cas_bits);
}
if (cas_bits == 0x0) {
cas_hangup += interval;
if (cas_hangup >= cas_hangup_ms) {
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_INFO, "Hanging up on CAS hangup signal persistence\n");
ftdm_set_state_locked(ftdmchan, FTDM_CHANNEL_STATE_HANGUP);
}
} else if (cas_hangup) {
ftdm_log_chan(ftdmchan, FTDM_LOG_DEBUG, "Resetting cas hangup to 0: 0x%X!\n", cas_bits);
cas_hangup = 0;
}
}
continue;
}
break;