مؤقت المكالمات

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* Ability to choose your language manually.(Thankx to 林君蔚 and Khac Phu Do for this suggestion)
* Start call timer manually or automatically. (Thankx to 宗德ms12 for this suggestion)
* Choose period to get notified pefore call timer hangs up the call. (Thankx to Engineer Mahmoud for this suggestion)
* Added countdown counter to indicate remaining time of call duration.(Thankx to Mohammed Elsayes for this suggestion)