Model & Infrastructure Business Internet Phone (VoIP)

Onno W. Purbo

With several cases of detention businessmen seem to VoIP will be very important to understand the various forms of business / technology available, such as:

• Voice over IP (VoIP)
• FAX over IP (FoIP)
• Internet Phone

One other fact different from the facility, but the principle is that we transmisikan on the Internet is the voice - whether it is with the ability to dial, voice or FAX. Reference more information about VoIP technology can be seen in some Web sites such as:

Http://www.pulver.com
Http://www.openphone.org
Http://www.openh323.org
Http://www.quicknet.net

Unified perception is required both for the users, operators and operators, regulators and policy that take the security apparatus that is not haphazard arrest people, mengobrak destroy the equipment that they have and accuse the alleged thief only because Telkom has a dastardly soul & not dare to compete. Stories will be a little different if Telkom & Police reason that employers use to operate the business page without permission. The only reason memojokan page will Telkom itself, because the right to sue employers VoIP is DITJEN Post / Government is not Telkom.

In the picture I try to show the modules will interact each other in the business VoIP, FoIP & Internet phone. One other fact is modular and can stand on its own - one another will interact in a very wide variation, so it is difficult to categorize one another.

If we see the image on the fact in general can be divided three major categories, namely:

1. Resaler / End User.
• Telecommunication Shop / Garnet / RT-RW-Net / Sub-district-Net (resaler)
• Corporate users (be a resaler).
• Personal PC users (via a dial-up ISP).
• Telephone (dial-up via ITSP).
• FAX (dial-up via ITSP).
2. Gateway / Access Providers / Internet Telephone Service Provider (ITSP).
3. Backbone / infrastructure.
• Managed IP (here the Quality of Service infrastructure in the set).
• Internet usual.
• Minute Exchange (approximately the same as the Internet Exchange in the Internet-it).

Friends and businessmen regulators may be aware that the business model used in VoIP, FoIP & Internet Phone can be quite complex. Most VoIP entrepreneurs are actually in Indonesia, only to run Internet telephony services Service Provider (ITSP). ISTP usually rent a leased line to the Internet and some phone lines to access customers.

From the model in the picture, actually many types of business that can grow in the VoIP, which may not have been show before. Managed IP backbone infrastructure that is a must in order to earn a VoIP voice quality is better than what is offered at this time. With the number of VoIP service such as this is the Internet, where the exchange traffik VoIP (usually known as the minute exchange) is required to exchange traffik / interconnection between the operators can run in Indonesia do not have to be abroad for international bandwidth. Please note that all operations page can be done modular, meaning that it can stand on its own and should not ITSP businessmen have managed IP backbone, employers should not have a page minute exchange.

From the service it will actually 2 types of services at the level of end user / resaler, namely:

• Dial-out only (one direction to the outside only) - can only call out only. Although the technology is not too hard to make this service a dial-out and dial-in.
• Dial-out and dial-in (can be two-way) - will control the infrastructure here will be felt mainly allocation phone number. Especially with the ability H.323 protocol that allows computers to act as a central phone.

The dial-out service is the only service that most easily because they do not operate in the need to coordinate phone number (E.164 standard) with various central phone using the H.323 protocol. Quality voice service is more difficult to control. This service is more suitable for resale services such as VoIP telecom shops and that what is generally used for dial-out only.

The dial-out service and dial-in (two) is only possible if the operator to obtain a phone number. The main issues of their concern that a regulator for two-way VoIP is a problem that control kualias businessman VoIP can maintain its quality and not poke VoIP users. Although actually control mechanism directly by penggunapun can actually be used. There are several main parameters for quality control, usually only the parameters of this may be good and consistent use of the Internet infrastructure, really good and is designed specifically for the needs of mentransmisikan data in realtime. Internet infrastructure in that needed special for realtime data, including Internet Phone by some colleagues in a managed IP infrastructure. Quality will be felt directly by pengunakan in two (2) the main things, namely:

• Penomoran so that the standard ISDN E.164 number can map to the IP address.
• Quality of sound in the form of Mean Opinion Score (MOS) can be approached Plain Old Telephone System (POTS), namely 4. In the picture shown kualias the difference between POTS, VoIP with compression software, VoIP over Frame Relay and VoIP with hardware compression using equipment from quicknet.net.

Parameters that can PROBE in the computer network to ensure quality is:

• In layer 3 (Internet Protocol)
o IP Precedence to use VoIP 5.
o Using Differentiated Services Code Point (DSCP)
• In the protocol layer 4 (Transport Protocol)
Usually used o Real Time Protocol (RTP).
o Using the User Datagram Protocol (UDP).
o Using the port of 16,383 to 32,767 applications for voice above.
• In the Managed Router IP infrastructure used different techniques to queue traffic compared with the normal Internet router. Here vouce traffic will use Priority Queuing (PQ) is the data traffik will use the weighted Fair Queuing (WFQ) or Class-Based weighted Fair Queuing (CBWFQ)

From the end user, improving the quality of the business can also be used in several ways such as:

• Conducting voice & video compression in the transmisikan (such as G.723 for voice).
• Using compressed RTP - to 40-byte header of the IP protocol UDP RTP can be compressed into only a 2-4 bytes.
• using Voice Activity Detection (VAD) - if that is not being sent not to speak through the voice infrastructure.

Apart from the model of technology and business VoIP, the VoIP providers must obtain government permission to operate and meet some of the things explained in UU36/1999, PP52/2000 & draft decree providers of telecommunications services. Things that need to glance at simaki businessmen, among others:

• UU36/99 Article 16 (1) - Every provider of telecommunications network and telecommunication service providers or required to provide universal service contribution in. In the simplest language, the VoIP should make the process of cross-subsidies in the set by the decree.
• PP52/2000 Article 26, 27 & 28 - set the Universal Service Obligation (Universal Service obligation) is in UU36/1999 Article 16. Universal Service Obligation / USO example in point is not to telecommunication network telecommunications services. Need for patterns in the revision of telecommunications services.
• UU36/1999 also set the cost of Rights Organization (BHP) of telecommunications services in the UU36/1999 Article 26. BHP is a non-budgeter funds in the Post.
• VoIP in the permitting process in the last draft of the decree telecommunication service providers can take in the http://www.postel.go.id because of the shape of the draft can be changed. Note on the draft decree services article 54, 78, 79, 80 & 81. Competition for acquiring a permit VoIP will be carried out in the open and set in the draft decree of telecommunications services, Chapter IV of Procedure of Article 96 permits's 101.
• VoIP may also be in the resale by the Cooperation Telecommunication not that set by the draft decree article 93.
• Be careful for play businessman who fire and run a commercial business VoIP without a permit because of violations in operating the VoIP without permission and without obligation Universal Service Obligation / USO will be affected by fines up to Rp. 1 billion and detention s / d in 10 years set in UU36/1999 articles 47 & 51.

All the script of Law, PP, the decree relating to the telecommunications and broadcasting can be downloaded from the http://www.internews.or.id capture the media's law. Blogosphere continue to sectors VoIP, the script regulations that are still very premature need to be assisted to be for the good of us all. Discussions about the regulation of telecommunications is done in many telematika@egroups.com & mastel-e-commerce@egroups.com.