Algar Telecom MMS Configurações de APN para o Allview Impera S

Go to App list, tap Settings Cellular + SIM

If your phone supports more than 1 SIM card, choose SIM 1 settings or SIM 2 settings depending on the SIM that you want to use for Algar Telecom MMS.
Turn on Data Connection.

Enable Use cellular data in For limited Wi-Fi connectivity
If you have more than 1 SIM card choose the SIM card for data connection in SIM for data connection
Enable 3G connection for faster data transfer speeds. Also enable Highest connection speed

MMS Configuration Settings: In Cellular + SIM Settings, select SIM settings Add MMS APN If you have a dual SIM phone select the SIM card. Change the below settings APN: mms.ctbc.br User name: ctbc Password: 1212 Authentication type: WAP gateway (URL): 172.29.7.70 WAP gateway port: 8080 MMSC (URL): http://mms.ctbccelular.com.br/was MMSC port: Maximum MMS size: 1024 IP Type: IPv4 Tap Save.