延迟在iPhone上接收APN [英] Delay in receiving APN on iPhone

问题描述

有时候我experiecing一个延迟，而接收的APN，而在其他时间的工作绝对没问题。

Sometimes I am experiecing a delay while receiving APN , while at other times its working absolutely fine.

我也连接到服务器的反馈在SSL：//feedback.sandbox.push.apple.com，但它没有显示任何数据

I am also connecting to the feedback server at ssl://feedback.sandbox.push.apple.com , but its not showing any data.

什么是延迟的可能原因是什么？

What are the possible reasons for the delay?

感谢

推荐答案

延迟可能发生，如果你已经有了3G或边缘连接不良（iPhone手机使用的，而不是wifi，也推除非他们完全不可用）。如果连接被删除，但该设备不知道它，它会等待，直到它做了心跳和实现连接关闭。

Delay can happen if you've got a bad connection on 3G or Edge (iPhones use those, not wifi, for push unless they're totally unavailable). If the connection is dropped but the device doesn't know it, it'll wait until it does a heartbeat and realizes the connection is closed.

此外，如果您使用的是iPod Touch上，连接到推送服务器将只能维持，而背光上，或者你通过USB插入;否则，当背光灯熄灭，以节省电源WiFi连接将被丢弃，它会轮询新的通知，每半小时一班。

Also, if you're using an iPod Touch, the connection to the push servers will only be maintained while the backlight is on or you're plugged in via USB; otherwise the wifi connection will be dropped when the backlight goes off to save power, and it'll poll for new notifications every half an hour.

这篇关于延迟在iPhone上接收APN的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！