Unicom 3G 66A monthly package includes 240 domestic point-to-point text messages. Does it mean that China Mobile, Telecom and China Unicom can send them?

Plan A 66 yuan 3G package

Includes 50 minutes of domestic voice calls, 300MB of domestic traffic, 6 M, 10 T, 10 minutes of domestic video calls, and 240 domestic text messages. , free nationwide calls. After exceeding the package, domestic voice calls are 0.20 yuan/minute, traffic is 0.0003 yuan/KB, and domestic video calls are 0.6 yuan/minute. Also comes with caller ID and mobile email. Other standard rates apply.

This is the tariff introduction of the 3G 66 Yuan Package A. The 240 domestic text messages included in it can be sent to China Unicom, China Mobile and Telecom users. If you find that there is a text message fee, it may be due to the amount of information you have sent. The number of free text messages has been exceeded. If you have any questions, it is recommended that you retrieve your text message details to check.