Laa hawla wa laa quwwata 'illaa billaah.

Repeat what the muazzin says, except for when he says: حَيَّ عَلَى الصَّلاَةِ وَحَيَّ عَلَى الْفَلَاحِ.Here you should says: "There is no might and no power except by Allah".

Wa 'anaa 'ash-hadu 'an laa 'ilaaha 'illallaahu wahdahu laa shareeka lahu wa 'anna Muhammadan 'abduhu wa Rasooluhu, radheetu billaahi Rabban, wa bi-Muhammadin Rasoolan wa bil'islaami deenan.

After the muazzin says the words of affirmation of Faith (Shahadah) says: "I bear witness that none has the right to be worshiped but Allah alone, Who has no partner, and that Muhammad is His slave and His Messenger. I am pleased with Allah as my Lord, with Muhammad as my Messenger and with Islam as my religion".

allahumma salli 'ala muhammad wa aali muhammad

One should then send prayers on the Prophet (saws) after answering the call of the muazzin.

Allaahumma Rabba haathihid-da 'watit-taammati wassalaatil-qaa'imati, 'aati Muhammadanil-waseelata walfadheelata, wab 'ath-hu maqaamam-mahmoodanil-lathee wa'adtahu, ['innaka laa tukhliful-mee'aad]

O Allah, Lord of this perfect call and established prayer. Grant Muhammad the intercession and favor, and raise him to the honored station You have promised him, verily You do not neglect promises.

One should also supplicate for himself during the time between the azan and the iqamah as supplication at such time is not rejected.