@ManjarulCh_
It sounds like you're experiencing an issue with making outbound calls to numbers other than your own. This could be due to a variety of reasons such as configuration settings, account permissions, or service restrictions. To assist you better, could you please provide me with the error message you're receiving when attempting to call other numbers? Additionally, please confirm that the numbers you're trying to reach are valid and active. If you have any specific error codes or messages, that would be very helpful in diagnosing the issue.