Missed Call

for the iPhone

FAQ

Frequently Asked Questions

1. How do I use the Missed Call application? How do I know if it is working?

2. Why does the application crash or not play sounds or animations?

3. Why do I need to remember run the application? Can't it run all the time in the background?

4. How long can I run the application before the battery drains?

5. Why do I need to also touch the display to stop the alerts after I have acknowledged a text message or calendar alert dialog?

6. Can I show different visual effects and sound effects based on whether I miss a call, text message or calendar event? Can I show different visual effects and sound effects based on who I missed a call or text message from or what calendar event?

7. Why do some sounds get cut-off mid play?

8. Why can't I use my music as sounds?

9. Why are some sounds louder than others?

10. Why does is there a prompt in front of my animation?

11. Why does the application not work when text messages are received?


1. How do I use the Missed Call application? How do I know if it is working?
The Missed Call application tracks when a phone call, text message or calendar event occurs. After the user defined time elapses (see Timer Settings), the application will play a sound and/or visual effect. Since Apple does not allow background applications the Missed Call application must be started before putting your phone down and walking away.

Also note how long the application is set to wait before a notification occurs. For example, if the Alert Interval in the Timer Settings is set for 15 minutes then the application will wait 15 minutes after the first call, text message or calendar event before playing an alert.

An easy way to test the application is to set the Alert Interval to 2 minutes (so you don't have to wait so long) and then call yourself using Skype or Google Voice. Once the call is missed wait 2 minutes and the visual or sound effect will play based on the applications settings. Do NOT press the Home button or Sleep button - this will disable Missed Call! Of course verify in the application settings that the application is configured to play either a sound or visual effect. If both are configured for "None" then no notification will occur.
Watch a demo video on YouTube.
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2. Why does the application crash or not play sounds or animations.
Please reboot the phone. Rebooting the phone fixes the instability issues that often occur after installing new applications or after using the iPhone for an extended amount of time.
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3. Why do I need to remember to run the application? Can't it run all the time in the background?
Unfortunately at this time Apple does not support background applications on the iPhone. Other phones have this capability and it has been a request from iPhone application developers for some time. Appleā€™s position has been that background applications cause instability and lower battery life. Until these capabilities become available the Missed Call application will need to be launched manually. The upside is that it usually becomes second nature once you miss a few important calls :).
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4. How long can I run the application before the battery drains?
In our tests, with all features on except automatic WiFi discovery (turned off really for security reasons more than battery savings), the iPhone lasted about 12 hours with the application running with no alerts being delivered during that time frame. The number of alerts, duration and frequency all affect battery life. We recommend for long term use that the iPhone be plugged into a charger. This allows the numbers of alerts, duration and frequency to be set higher to ensure that you are notified as soon as possible.
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5. Why do I need to also touch the display to stop the alerts after I have acknowledged a text message or calendar alert dialog?
Unfortunately the iPhone handles phone calls differently from text messages and calendar events. Phone calls do not pop up a prompt like text messages and calendar events. Also, the iPhone does not notify the application which type has occurred. In order to handle missed calls as well as missed text messages and calendar events the application must rely on the least common denominator which is no prompts. The end result is that in order to cancel a missed text message or calendar event alert the iPhone popup must be acknowledged first and then the screen must be touched to notify the application that the alerts should stop. Hopefully in the future Apple will handle all these events similarly and allow us to distinguish what has been missed.
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6. Can I show different visual effects and sound effects based on whether I miss a call, text message or calendar event? Can I show different visual effects and sound effects based on who I missed a call or text message from or what calendar event?
Unfortunately Apple does not inform applications about what was missed or who it was missed from. Hopefully in the future Apple will handle all these events similarly and allow us to distinguish what has been missed.
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7. Why do some sounds get cut-off mid play?
This was a design decision. The application can be configured to play alerts for 2, 5 or 10 seconds. We decided that is was more important to play the sound only for the length of time the user selected even if the sound is longer. Sound effects that are longer that are 2 seconds in length will be stopped at 2 seconds if that is how the application is configured.  Please see the Settings/Timers screen to change the alert duration configuration. Note that currently, no sound effect is longer than 5 seconds so settings the alert duration for 5 seconds will ensure that the application plans the entire sound effect.
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8. Why can't I use my music as sounds?
Applications are not allowed access to the music library in the current version of the iPhone. Apple has stated that version 3.0 of the software will allow access to the music library. We plan to include support for this in our application at that time.
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9. Why are some sounds louder than others?
All the sound effects have been normalized to the maximum loudness allowed without clipping the sound. The decision was to keep the audio quality (by not clipping the sound) instead of making the average sound level higher. Thus sound effects that are mix low volume and high volume sounds will be perceived to be somewhat lower in volume to keep the quality. Another reason is that the ear is less sensitive to the higher and lower parts of the audible spectrum so sound effects that are in those spectrums will be perceived to have a lower volume. Also, sound effects that are discordant tend to sound louder than melodies even though the decibel output is the same.
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10. Why is there a prompt in front of my animation?
The iPhone pops up a prompt when a text message or calendar event occurs. The user must acknowledge the prompt before it will dissappear. Unfortunately Apple does not allow applications to dismiss those prompts automatically at this time.
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11. Why does the application not work after a while when text messages are received?
The iPhone has a bug that causes the phone to go to sleep when text messages are received even when the Missed Call application tells the phone not to sleep. This bug was introduced in Apple version 2.1 from our testing. The work around is go to the iPhone Settings App, select "General", then select "Auto-Lock". Change this setting to 'Never'. This causes the phone to remain awake even with Apple's text message bug. We reported this bug in May but it was not fixed in version 3.0. We are monitoring our bug report and hope it will be fixed in version 3.1. Note that this affects any application that wants to continuously run and not just Missed Call. For example, the numerous "Alarm Clock" applications will fail to wake you up in the morning if a text message arrives during the night since the clock application will also sleep due to this bug. If you would like to help us out and report the bug to Apple, here is a link to leave Apple iPhone Feedback.
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