Have you got ''call waiting'' enabled on your phone service?
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It may be that the tone you hear when talking on the phone is being sent by your mobile phone service provider, indicating that there's another call waiting to be answered.
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It may be that the tone you hear when talking on the phone is being sent by your mobile phone service provider, indicating that there's another caller trying to ring you
Hi @abimurali
Have you got ''call waiting'' enabled on your phone service?
It may be that the tone you hear when talking on the phone is being sent by your mobile phone service provider, indicating that there's another call waiting to be answered.