How can i check my micro phone is working properly or not?

If the person cannot hear you then, either your microphonedriver not installed or not working OR the microphone is not configured inSkype.
To test your microphone then click on Start - All Programs - Accessories -Entertainment - Sound recorder. Then record your voice and then play it back.If this is OK then the microphone need to be configured in Skype.
To configure the microphone - Open Skype - Tools - Options -Audio Settings for the Microphone THEN click on Save.

Looking at the type of speaker i would give it a safe distance of 10 ft. Anything further than that would be audible but slightly decreased in quality.

Check you micro phone.....and make sure it is working properly by recording your voice and then listen it.......is it working Properly?

If not hen repair or replace it with new one.from mobile repairing shop...

Check you micro phone.....and make sure it is working properly by recording your voice and then listen it.......is it working Properly?

If not hen repair or replace it with new one.from mobile repairing shop...

go to menu on micro phone make sure the settings of voice and sound are set level together.

Check you micro phone.....and make sure it is working properly by recording your voice and then listen it.......is it working Properly? If not hen repair or replace it with new one.from mobile repairing shop...

Check you micro phone.....and make sure it is working properly by recording your voice and then listen it.......is it working Properly? If not hen repair or replace it with new one.from mobile repairing shop...

Check you micro phone.....and make sure it is working properly by recording your voice and then listen it.......is it working Properly? If not hen repair or replace it with new one.from mobile repairing shop...

if your speaker it sound broked when you listen music it need replacement, also check witch one is not working properly because n73 has 2 speakers

please chek your mic, if it could get moistured then itshould not work properly.Please change the mic of your mobile in service center. But the alternate solution is your handsfree wire. you can use it for calls handling.
thanks..........
rgrds: Rajiv kumar 09811461147