Which terminal should I choose to send SMS to broadband?

Now they are all smart phones, and they all use cmnet. I used to use cmwap when I was not a smart phone.

NAI (network access identifier) is also called NAI (network access identifier). Users can choose different NAI through the mobile terminal to realize different network access modes and access different services. At present, China Telecom's main NAI are CTNET and CTWAP, among which CTWAP is mainly used for its own service access in the telecom intranet and CTNET is mainly used for public Internet service access. The former is set for WAP Internet access, while the latter is mainly for GPRS Internet access services such as PC, notebook computer and PDA.