Nokia shows no signs of slowing down when it comes to releasing new Lumia smartphones. According to a new report, Nokia will be unveiling two new handsets, the Lumia 720 and Lumia 520 at Mobile World Congress later this month.

Nokia is on a mission to saturate the smartphone market with as many Lumia smartphones as possible at all different price points. Two new Nokia Lumias have passed certification from Directorate Post & Telecommunication Indonesia, which is an equivalent of FCC in Indonesia. The smartphones will be the successors to the Lumia 710 and Lumia 510, mid-range and entry-level smartphones.

According to mynokiablog, the Nokia Lumia 720, codenamed "Zeal," will feature a 4.3-inch ClearBlack display, 1GHz dual-core processor, 8GB of internal storage, 512MB of RAM, 6-megapixel rear camera, 2-megapixel front camera, support HSPA+ networks, run Windows Phone 8 and have a microSD slot for expansion.

The Nokia Lumia 520, codenamed "Fame," will feature a 4-inch Super Sensitive Screen, 1GHz dual-core processor, 8GB of internal storage, 512MB of RAM, and a 5-megapixel rear camera (there will be no front-facing camera), run Windows Phone 8 and have a microSD slot for expansion.

Here's some fun trivia in case you've been wondering where Nokia comes up with its naming schemes. Vipul Mehotra, director and head of smart devices has explained the process. Lumia smartphones beginning with the number 5 are considered to be the most economically priced, smartphones beginning with the number 9 are considered to be Nokia's high-end offerings. The number 10 in the name means the device runs Windows Phone 7.5 or Windows Phone 7.8, while the number 20 means that the phone is running Windows Phone 8.

Possible carriers, pricing or launch dates for the Lumia 720 and 520 have not been mentioned, but that information is expected to come with the official Nokia announcement of the smartphones at Mobile World Congress.