How to view Whatsapp chats on a phone without a sim ?

[RamDev83]

I have 2 mobiles and wanted to have my older messages (that are on my old mobile) readable in that same mobile which is now without SIM

I'm using the same number on my new phone and continuing whatsapp

Actually I wanted to know as what should I enter when asked for phone number ? (mobile without sim)

PS : I knew there is an option to retrieve through backup file.. my query is, is it possible to make function as read-only in phone without sim

hope I haven't confused.
I would be thankful if you have any solution for this.. Thanks in Advance

 

[B. Diddy]

Apologies if this is thread is being moved more than once, but I thought it may be better served in the WhatsApp forum.