Grandstram 32-Line IP Pabx Package

The Grandstram IP PABX includes 32 32-line IP servers and 15 Pcs PoE IP phones. If you have 15 branches in Bangladesh you can have 15 IP phones in 15 branches and can talk from one office to another office completely free of charge for this you can talk from one office to another office completely free of charge only through the Internet.