WhatsApp uses a "keep and forward" mechanism for exchanging messages involving two users. When a user sends a information, it is actually saved over a WhatsApp server, which tries to forward it towards the addressee, and repeatedly requests acknowledgement of receipt. ✅ 프리미어리그 독점 중계 (손흥민, 맨시티, 리버풀 경기 실시간 https://naturalhealthproducts.sport.blog/2025/09/03/cureayu-indias-trusted-ayurvedic-wellness-brand/