3G discussed the government and service provider technology as a must in the adoption. Did you that the maximum speed of 3G mobile phone base station to mobile at the time only 128Kbps. If you use a walking speed 3G only 384Kbps, the speed is the maximum will only be obtained if the 3G mobile phone is not the way it used at home, namely, 2Mbps.

As described in the Fund by Blair from Cisco in a presentation titled "4G: The End of the Intelligent Network", all the consequences of network-based IP, technology, which we actually use technology is the Internet Phone (VoIP) technology, especially using the Session Initiation Protocol (SIP ).

We all can take the source code and mengimlementasikan directly without the need to pay anything. Examples from the real implementation of the central 4G phone is VoIP in the People's http://www.voiprakyat.or.id motori by Anton Raharja from ICT Center Jakarta. For those of you who are interested to develop its own telephone exchange and make it to VoIP peering People can take the source code for its softswitch in http://www.asterisk.org.

Anton et al had not stopped to make a telephone exchange, and they have even more far bypassing the Indonesian government and ISPs in Indonesia with server enum build their own engine on voiprakyat.or.id. Enum is a service on the Internet that can do the mapping of phone numbers to the telcom-based SIP VoIP account. KOMINFO want a new start "PROJECT" to enum, when there are children who have been successful with both operating the enum.

How the handset to the pre-4G. For those who are still in standard tests, it can use the computer / laptop in complete SoftPhone such as WiFi and x-lite and sjphone. For those who have a PDA with the Pocket PC operating system that has WiFi capability, you can take the SJPhone software for the PPC and use your PDA as a pre-4G phones.

For those who want more serious, there are several options pre-4G phones such as Nokia E60, E61, E70 and the complete operating system Symbian OS 9.1, which supports voice communications such as Push-To-Talk and SIP. Other classes may be interesting is the Linksys WIP330 Wireless-G IP phone that is equipped for radio 802.11b / g. For those who seek to find solutions gimcrack Hop-on $ 39 WiFi Phone shapes such as nokia long, 3.5 hours of talk time or 30 hours standby. In addition, it seems to many WiFi phones are starting to enter Taiwan under the price of Rp. 500,000, --