switch_event_get_header 1252 mod_freetdm/mod_freetdm.c if ((var = switch_event_get_header(var_event, "freetdm_outbound_ton")) || (var = switch_core_get_variable("freetdm_outbound_ton"))) { switch_event_get_header 1266 mod_freetdm/mod_freetdm.c if ((var = switch_event_get_header(var_event, "freetdm_custom_call_data")) || (var = switch_core_get_variable("freetdm_custom_call_data"))) { switch_event_get_header 1298 mod_freetdm/mod_freetdm.c if ((var = switch_event_get_header(var_event, "freetdm_pre_buffer_size"))) {