According to your description: you can't use telecom cards. The network standard of your mobile phone is GSM.
Mobile and Unicom 3G networks can be used, but CDMA networks that do not support telecommunications can also be used. No telecom card, no support for 4G network.
Telecom has reduced its price, and the mobile phone bill is only 30% off! 49 yuan charges 129 yuan, including 330 minutes of voice and 600M traffic, which can double the traffic 1 yuan! 69 Yuan Bao 189 yuan; 89 yuan package 289 yuan; 99 yuan bag is 329 yuan.
Please visit Anhui Telecom's online business hall for details.
Wish you a happy life! I hope my answer will help you and be adopted by you!