sql=switch_core_db_mprintf("update channels set application='%q',application_data='%q', read_codec='%q',read_rate='%q',write_codec='%q',write_rate='%q' where uuid='%q'",
sql=switch_core_db_mprintf("update channels set read_codec='%q',read_rate='%q',write_codec='%q',write_rate='%q' where uuid='%q'",