From fa1a1bfbaff3596f7a0b3a14112daa324c7ee318 Mon Sep 17 00:00:00 2001 From: Moises Silva Date: Tue, 22 Oct 2013 00:52:59 -0400 Subject: [PATCH] freetdm: Added CAS hangup bit checking to the E&M signaling module --- .../ftmod/ftmod_analog_em/ftmod_analog_em.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/libs/freetdm/src/ftmod/ftmod_analog_em/ftmod_analog_em.c b/libs/freetdm/src/ftmod/ftmod_analog_em/ftmod_analog_em.c index b08a832b4f..b5d3ee66da 100644 --- a/libs/freetdm/src/ftmod/ftmod_analog_em/ftmod_analog_em.c +++ b/libs/freetdm/src/ftmod/ftmod_analog_em/ftmod_analog_em.c @@ -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; @@ -640,6 +642,23 @@ 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;