Mobile access is most useful when it gives you choice. You can notice a message, decide whether it needs an immediate answer, and return when you have the attention to respond well. Being available on a phone does not mean being available every minute.
Use status and preference details to make timing visible. If you usually answer in the evening, say so. If you prefer a considered exchange instead of rapid messages, include that in your profile. Small pieces of context can prevent unnecessary pressure and make the conversation easier for both people.
Notifications should support your routine rather than interrupt it. Keep the updates that matter, turn off anything that creates noise, and step away when a conversation stops feeling constructive. A good interaction can survive a pause. Respectful communication leaves room for work, sleep, privacy, and the rest of daily life.