Dialog is a trademark of Mobil Rom SA, the company that launched the GSM network in Romania, on June, 1997. The members of the consortium were: France Telecom Mobiles International - 51%, Media Pro Group - 30%, Computerland - 10%, Tomen Telecom Project Romania and Alcatel Network Systems Romania (9%).
Mobil Rom SA offers a subscription based service (Dialog) and a prepaid service (Alo).
Since late 1999 the new structure of shareholders is: France Telecom Group - 67%, American Investment Group and Societe Generale - 14.28%, MMR Group (Media Pro, MBL Computers and Radcom) – 9.52%, Tomen Company Japan – 5.1%, Alcatel NV – 2.86%.

In May 2000, France Telecom acquired Orange and decided this is going to be the name of the group that will bring together all its mobile communications activities.

Starting with April 2002, Dialog and Alo became Orange.

Orange is a trademark of Orange Romania SA, the company that was created due to changing of the name of the group that will bring together all France Telecom's mobile communications activities. The new name was launched on April 5th 2002, replacing the previous name of the service, Dialog. The structure of shareholders is: France Telecom Group - 67%, American Investment Group and Societe Generale - 14.28%, MMR Group (Media Pro, MBL Computers and Radcom) – 9.52%, Tomen Company Japan – 5.1%, Alcatel NV – 2.86%.
Orange Romania SA offers a subscription based service (Orange) and a prepaid service (Orange PrePay).