Modeled in Blender and rendered using Cycles Renderer. Decals created using Inkscape.

The model is available for purchase on my CGTrader page here: https://www.cgtrader.com/3d-models/electronics/phone/old-telephone-e6fb95fc-60ab-44f7-ad79-9a1e6623385b

Texture resources used:
https://www.textures.com/download/pbr0150/133185
http://texturelib.com/texture/?path=/Textures/metal/bare/metal_bare_0029
http://texturelib.com/texture/?path=/Textures/plastic/plastic_0032