Cdma sms center number

There is no sms center number in the CDMA text message protocol,CodeThis parameter is passed down because Android supports both g and C, and this parameter is not surprising in the Code. Because it is derived from the same set of interfaces, It is discarded in the middle, it is useless to transmit data;

GSM has a text message center number. In the text message setting menu, there is usually a "text message center number setting" function, but there are very few GNET mobile phones, SMS roaming is free of charge ~