双向/电话会议中的 iPhone 音板功能
例如,从 iPhone 应用程序拨打电话,然后使用逗号暂停字符发送 DTMF 信号以浏览音板菜单是很容易的:
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"tel ://somenumber,,1,,2"]];
但是,如果您已经在通话中并且想要拨打第二个电话,那么它似乎不起作用。当我使用上面的代码从应用程序中尝试此操作时,它会拨打 somenumber
但似乎完全忽略 ,,1,,2
。谁能证实这一点吗?
It's easy enough to, for example, make a call from an iPhone app and then use the comma pause character to send DTMF signals to navigate through a tonepad menu:
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"tel://somenumber,,1,,2"]];
But it doesn't seem to work if you are already in a call, and want to place a second call. When I try this from the app with the code above, it dials somenumber
but seems to ignore the ,,1,,2
completely. Can anyone confirm this?
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从我的测试中我发现,一旦您与第一方建立了电话呼叫,iOS 确实会忽略
,,1
等的任何实例。From my testing I discovered that iOS indeed ignores any instances of
,,1
etc, once you have established a phone call with the first party.