| english title | Whispering Corridors 4 : Whispers |
| original title | 여고괴담 4: 목소리 |
| aka | Voice Letter |
| year | 2005 |
| country | Korea |
| director | CHOI Ik-Hwan - 최익환 | |
| actor | KIM Ok-Bin - 김옥빈 | |
| SEO Ji-Hye - 서지혜 | ||
| CHA Ye-Ryeon - 차예련 | ||
| KIM Seo Hyung - 김서형 | ||
| composer | LEE Byeong-Hun - 이병훈 | |
| JANG Yeong-Kyu - 장영규 | ||
| scriptwriter | SEOL Jun-Seok - 설준석 | |
| CHOI Ik-Hwan - 최익환 | ||
| artistic director | KIM Jun - 김준 | |
| editor | KIM Seon-Min - 김선민 | |
| cinematographer | KIM Yong-Heung - 김용흥 | |
| costumes | YUN Mira - 윤미라 |
| genres | fantasy |
| duration | 104 min |
| distributor | Cinema Service |
| production studio | Cine2000 |
