SWITCH_CONFIG_ITEM("tdm-pre-buffer-size",SWITCH_CONFIG_INT,CONFIG_RELOADABLE,&profile->tdm_pre_buffer_size,0,&pre_buffer_len,"","freetdm pre buffer size"),
SWITCH_CONFIG_ITEM("tdm-pre-buffer-size",SWITCH_CONFIG_INT,CONFIG_RELOADABLE,&profile->tdm_pre_buffer_size,0,&pre_buffer_len,"","freetdm pre buffer size"),