Hi,
for employees with id = 1, 2 and 5
save_record.php?<auth_pars>&module_id=phonecall&record_id=NEW&last_sync_date=now>&f_subject=test1&f_permission=0&f_employee=__1__2__5__
Just for contact id = 5
save_record.php?<auth_pars>&module_id=phonecall&record_id=NEW&last_sync_date=<now>&f_subject=test1&f_permission=0&f_employee=__5__
see the Utils_RecordBrowserCommon::encode_multi.
save_record.php calls Utils_RecordBrowserCommon::decode_multi if field is multiselect
Regards,
Adam