We just need to have the IP PABX equipment design and specifications so that we can do a correct procurement (not the layout drawings).
Khun Veera will contact Khun Meechai and Khun Tippatai to get the ME49 design information tomorrow.
Besides, Khun Veera advised that the IP telephone sets shall match the PABX system to ensure functionality, and therefore we shall do the quotations together.