Multiple extensions (5 digit only) not a DID number to zoom phone

Hi @Yogesh_vrtx 

You cannot assign multiple extensions to a user or phone etc per the design. 

Hope that helps.

Hello @Yogesh_vrtx, can you elaborate what is it you are trying to accomplish with the extra extensions?

As @sachinzoom is stating, you cannot have multiple extensions associated with a single user by design, but depending of what you are trying to do there might be alternatives you could use like "Line Delegation" or "Shared Line Group".