Author: mikej Date: Tue Feb 5 10:50:49 2008 New Revision: 7522 Modified: freeswitch/trunk/src/switch_ivr_async.c Log: pre-answer first! Modified: freeswitch/trunk/src/switch_ivr_async.c ============================================================================== --- freeswitch/trunk/src/switch_ivr_async.c (original) +++ freeswitch/trunk/src/switch_ivr_async.c Tue Feb 5 10:50:49 2008 @@ -970,7 +970,15 @@ switch_status_t status; switch_inband_dtmf_generate_t *pvt; - switch_assert(read_codec != NULL); + if ((status = switch_channel_pre_answer(channel)) != SWITCH_STATUS_SUCCESS) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can not install inband dtmf generate. Failed to pre_answer session!\n"); + return status; + } + + if (!read_codec) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can not install inband dtmf generate. No read codec.!\n"); + return SWITCH_STATUS_FALSE; + } if (!(pvt = switch_core_session_alloc(session, sizeof(*pvt)))) { return SWITCH_STATUS_MEMERR; @@ -978,7 +986,6 @@ pvt->session = session; pvt->read = !!read_stream; - switch_channel_pre_answer(channel); if ((status = switch_core_media_bug_add(session, inband_dtmf_generate_callback, pvt, 0, pvt->read ? SMBF_READ_REPLACE : SMBF_WRITE_REPLACE, &bug)) != SWITCH_STATUS_SUCCESS) {