{
{    The purpose of this function is to return the number of additional credits
{ to be assigned to the specified connection.  If no additional credits can be
{ assigned and no credits are outstanding, then a one minute timer will be
{ selected to "wake up" the connection.
{
{   NOTE: This function is for use by the Channel Connection Entity only, and
{         is NOT intended for use by users of the Channel Connection service.
{
{       NLP$CC_OBTAIN_CREDITS (CONNECTION): INTEGER
{
{  CONNECTION: (input)  This parameter specifies the connection description.
{
