Argentina

Claro
APN settings
 * username: clarogprs
 * password: clarogprs999
 * APN name: igprs.claro.com.ar

Movistar 1
APN settings
 * username: wap
 * password: wap
 * APN name: grps.uniform.com.ar

Movistar 2
APN settings
 * username: wap
 * password: wap
 * APN name: internet.unifon

Personal
APN settings
 * username: gprs
 * password: gprs
 * APN name: gprs.personal.com