1G, 2G, 2.5G, 3G and 4G is the latest generation of technology used in cellular infrastructure. On this day, Indonesia has entered the stage of 2.5G technology. In simple terms can be interpreted 1G technology is an analog phone / PSTN using cellular. Technology 2G, 2.5G and 3G is the ISDN provider.
Intelligent Network (IN) is simply the core of telecommunications infrastructure operated by many telecom operators in Indonesia at this time. Particularly in the mobile world many SS7/IS-41/GSM MAP protocol relies on intelligent nodes.Teknik nearly the same also applies to non-mobile operators such as Telkom, Indosat and Satelindo.
3G voice service in essentially the same as voice services in ISDN. Digital cellular handset is basically an ISDN handset. Unfortunately, ISDN is in fact not work well to deploy new voice services and the integration of data/voice. We are quite lucky with the 3G turned out to open the opportunity to test Internet technologies such as Session Initiation Protocol (SIP) and uses the IP v6 (currently all commercial ISPs in Indonesia using the older IP v4). Tests for the integration of SIP & IP v6 to do 3G in the 3GPP initiative.
SIP is the core protocol in the Internet telephony (http://www.iptel.org) which is the latest evolution of Voice over Internet Protocol and Telephony over Internet Protocol is a lot of debate by the operator, the government and Parliament on this day. Ironically, the Internet telephony will be the main backbone telecommunications infrastructure soon. Crazy, internet telephony technology allows the builder of telecommunications infrastructure in a non-government people (without the World Bank, IMF and ADB) is even possible without government control at all if only the creativity of the nation is not in stocks.
For the 4G technology, each handset 4G will immediately have the number of IP v6 is equipped with the ability to interact internet telephony-based Session Initiation Protocol (SIP). All types of radio transmissions such as GSM, TDMA, EDGE, CDMA 2G, 2.5G will be used, and can integrate easily with radios that operate without a license, such as IEEE 802.11 in the 2.4GHz frequency and 5-5.8GHz, Bluetooth and cellular. Integration of voice and data in the same channel. Integration of voice and data-enabled SIP application.
Her most crazy with SIP technology that are behind 4G, telephone number +62 21 123 5678 are only one subset, a small part rather than recognition / identification of the phone. Most of the identification / telephone numbering will be done using a URL such as sip: onno@indo.net.id . By relying on the URL, the world becomes more interesting because we no longer need to depend on the phone number in case the government kuasasi. POSTEL to communicate with the internet phone. If we're pretty crazy, actually in many ways we can carry out their own Internet telephony infrastructure without the need to depend on the permit / license the government without violating the law, with the software that made their own without spending a lot of foreign exchange. No need that we must spend U.S. $ 1000 / SST as in gembar heralded today, if only the creativity of children of the nation does not turn off.
All the technologies mentioned above are still in the development and refinement. There are several organizations that rely on Open Standards Internet Engineering Task Force (IETF) http://www.ietf.org which was the backbone behind all activities. Especially for internet telephony much driven by IPTel http://www.iptel.org and SIP Forum http://www.sipforum.org.
Interesting to see that with 4G technology, practical technology, Intelligent Network (IN) who was once the belle of the telecommunications infrastructure used by Telkom, Indosat, Satelindo, etc. were obsolete (obsolete). Not impossible, not much longer (5-10 years) has been the triumph of the telecommunications infrastructure of Telkom, Indosat, etc. which mostly relies on technology that is based on various ITU standards for competing with the current movement that uses underground technologies such as SIP, MGCP, Megaco, RTP etc. are all open and can be downloaded for free on the Internet today.
Source: Merdeka! - Onno W. Purbo
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