Definition of 着加入者 (ちゃっかにゅうしゃ)
ちゃっかにゅうしゃ
                        着加入者
ちゃっかにゅうしゃ
chakkanyuusha
noun
•
        
called party, called subscriber(computer term)
Related Kanji
| 着 | don, arrive, wear, counter for suits of clothing | 
| 加 | add, addition, increase, join, include, Canada | 
| 入 | enter, insert | 
| 者 | someone, person |