private PhoneRM CreatePhoneForAssociate(Commands.V1.Associate.Phone.CreateForAssociate cmd)
        {
            Phone phone = Phone.CreateForAssociate(_phones++, cmd.IsPrimary, cmd.AssociateId, Extension.Create(cmd.Extension),
                                                   PhoneTypeLookup.PhoneTypes[cmd.PhoneTypeId]);

            if (_repository.PhoneExistsForAssociate(phone, cmd.AssociateId))
            {
                throw new InvalidOperationException($"Phone already exists for Associate {cmd.AssociateId}");
            }

            _repository.AddPhoneForAssociate(phone, cmd.AssociateId);

            return(Conversions.GetPhoneRM(phone));
        }