- 23 - surveillance, and shall notify the Ministry, through confidential correspondence, of the name of the owner of the phone making annoying calls; b. If the owner of the phone making the annoying calls is a subscriber with the same licensee, the latter shall inform the Ministry after: 1. Addressing a warning notice if the disturbance occurs once or more within the first surveillance period; 2. Disconnecting the phone for ten days, if the annoyance occurs within the second period of surveillance; 3. Disconnecting the phone for thirty days if the annoyance occurs within the third surveillance period; 4. Disconnecting the phone if the annoyance occurs within the fourth surveillance period. If that phone is connected to a network of another licensee, the Ministry shall order that licensee to carry out the measures of this clause. c. The Ministry may agree with the competent authorities on other measures to handle complaints because of annoying calls and the measures ensuing from those complaints and the obligations of the licensees to seize the contravener and bring him to trial. Article 63 Phone service shall not be cut off or cancelled unless a subscriber causes physical damage to the network, uses the phone illegally or falls in arrears with regard to the due fees and costs in spite of being warned in writing. Article 64 The Ministry shall verify if the licensees abide by the terms of licenses and provisions of law. To this effect, the Ministry may take any measures as it deems appropriate, such as: a. Physical inspection of the network sites and telecommunications devices; b. Examination of licensee’s technical registers to ensure the appropriateness and accuracy of the systems used to issue invoices;