SIP protocol ot support for IP PBX Products - Voip PBX Services, PABX Services

SIP protocol ot support for IP PBX Products - Voip PBX Services - PABX Service

IP PBX (telephone exchange network) in the past 20 years developing a product, the industry that has experienced three generations of its evolution, first and second due to its technical weaknesses, the market has not been fully accepted. With the global spread of broadband networks and the standardization of IP phones, IP PBX third generation came into being, which integrates voice, fax, data and video communications and other functions, the traditional PBX is not only a great threat and will gradually replace the former and become the leader in this field. The third generation of IP PBX based on the unified transfer protocol such as H.323, as well as the newer SIP protocol. Which, IETF's SIP protocol organizations to develop more than in H.323 scalability, openness has advantages.

The United States since 2002 Zultys Technologies launched the first enterprise communications "media exchange" MX1200 since (Annex 6), the following companies have launched to support the SIP protocol switch media: Beijing Chol ZSwitch series of information technology (Annex 4 ), Taiwan Network FONEMOSA 4400 Series Titanium Technology (Annex 5), Zultys MX250 (Annex 7,2003 years), 3Com NBX (Annex 8), Cisco CallManager 4.0 (Annex 9), the United States Brekeke company OnDO PBX (Annex 10) . In addition, the following companies are research and development agreement to support the SIP media switches: Light and Power Company Limited technical PBmax-132 (Annex 2), Taipei peak IP PBX (Annex 3). Most of the above-mentioned IP PBX products (to be) the use of low-speed voice compression algorithms such as G.723/G.729/G.711, such as echo cancellation agreement G.165/G.168, Call Control Protocol SIP, communication interface 10/100Base-T . They have conference calls, video communications, wireless interface and other functions. Can be seen to support the SIP protocol, low-speed voice coding agreement in support of video communications, wireless communications IP PBX is one of the development.

These products are as follows:

According to the company's Web site reported power technology and its products PBmax-132 voice compression G.723/G.729 agreement, the use of echo cancellation G.165/G.168 25ms, Call Control Protocol H.323, SIP (under development), the use of 10/100Mbps LAN ports, features include: support for Web configuration and management, intelligent control procedures provide reliable and zero errors in system monitoring and reporting functions, voice mail, automatic transfer, etc. (Annex 2).


According to the Taiwan company reported net Titanium, Titanium Science and Technology Network FONEMOSA 4400 Series IP-PBX product specifications, proprietary call control protocol call control protocol, SIP, voice compression protocol G.711/G.729AB, echo cancellation using G.165 / G. 168 16ms, 10/100Base-T interface (Annex 5).

According to the United States Zultys Technologies Products was informed that in 2002 the company introduced MX1200, the world's first enterprise communications needs for tailor-made "media exchange", it voice, fax, data and video exchange and other functions integrated into a chassis. The use of high-speed CPU and digital signal processor (DSP), users simply choose the SIP-based telephone user interface or program, you can communicate through the MX1200. 25-1200 users MX1200 support to support the SIP protocol (Annex 6).

In 2003, Zultys introduced a lower price, the products can be extended-MX250. MX250 codec used G.711/G.729 agreement, 5-250 user support, support for SIP protocol (Annex 7).

3Com Corporation, according to the official website reported, 3Com has the following advantages: One, two networks (based on Ethernet and TCP / IP technology, voice network and data network integration), open (H.323, 3102 and 3101 phones support the SIP ), a powerful system (integrated unified messaging, voice mail, conference calling and other standard equipment, and expansion of more integrated voice and data applications), 3Com NBX products are divided into two series: NBX100 and SS3 NBX, NBX100 is currently the most support 200 devices, SS3 NBX device supports up to 1500 (Annex 8).

China Computer 2004-10-18 published in several newspapers, introduced to support the SIP protocol IP PBX products, which, Cisco CallManager 4.0 support SIP-IP PBX product, the product highlights include video phone calls, voice traffic encryption, as well as telephone support for secure authentication. SIP-based Zultys products MX250 IP PBX is a medium-sized IP PBX, it supports SIP-based real-time news, in addition to traditional telephone, fax, call control, as well as the backbone of the public switched telecommunications network, etc. (Annex 9).

U.S. Brekeke's OnDO PBX is a software-based IP-PBX, using SIP protocol. Features include voice mail, call forwarding, etc. (Annex 10).

Telephone IP - PBX Service - IP PBX Service - PBX Service Provider

Telephone IP - PBX Service - Voip IP PBX Service - PBX Service Provider

An IP-PBX telephone switch is a dedicated server to switch telephone calls, managing all internal and external communications for IP telephony. This way all the extensions handled by this team finish in IP phones, telephone adapter ATA, Softphone or SIP servers.

An IP-PBX can connect remote extensions. Therefore an IP-PBX with office in Hong Kong, for example, can have several internal (branch) connected in Caracas. Users in Hong Kong and Caracas are part of the same telephone exchange as a digital extension to communicate with each other. These communications are free because it uses internet connection.

Another possible configuration is to hire minutes of IP telephony and a mix of technologies to lower costs. Suppose an office receives calls by the traditional method (analogue line) and make calls by several providers minutes. This can cut costs by up to 90% by telephone.

Because the advantage of IP-PBX is able to connect a group of people with other groups in remote locations, is designed for use by companies or organizations with a good long distance traffic, or branches of international companies.

It also allows one or more employees work from home, since their IP phone can be configured as an extension of the IP-PBX.

Some of the most common features of our IP-PBX Central are:

• Preatendedores Interactive (IVR). With registered professional announcer.
• Click-2-Call is an innovative tool that allows customers to request a free call using a Web form.
• Music on hold.
• Voicemail (Voice Mail).
• Multi Conference.
• Call Forwarding.
• Call Waiting.
• Reports of traffic.
• Key to annex.
• Receipt of FAX in PDF.
• Recorded for all calls, and outgoing.
• Sending voice messages to email.
• Annexes extended to branches.
• Terms of hours to play messages.
• Administration Web Panel.
• Queues called for sales, support or other departments of your company.
• Integration with Skype network (Optional).
• Details of calls, reports and statistics.
• Monitor real-time activity.

And many more unique features are provided by Central IP PBX service provider.

Settings description of PBX and IP PBX

It is increasingly more common for organizations to acquire, install and maintain hardware components, such as the central switch (PBX) or IP PBX, which are required to admit their own telephone systems. Many organizations purchase their own telephone equipment and train its staff to reduce costs associated with maintenance of its telephone systems and because they want greater control of telephony features offered.

For an organization to possess and maintain a telephone network, you must purchase the hardware needed. It should also take into account the daily maintenance of telephone equipment and training necessary for your staff to manage the telephony system. This topic discusses the different types of telephone systems and business or organizational components of telephony hardware required. It also provides examples of different types of telephony configurations.

A PBX is a legacy PBX telephony device that switches calls in a telephone network or circuit switched. A legacy PBX is a PBX that does not have a network adapter and can not transmit packets. Not being able to transmit IP packets, some companies and organizations have replaced legacy PBX to IP PBX. For a list of supported PBX for Exchange 2007 Unified Messaging, see Telephony Advisor for Exchange Server 2007.

Most companies use medium and large PBX. PBX enables users or subscribers to share a number of external lines for making telephone calls are considered as external to the PBX. A PBX is a much less expensive to provide each user with a telephone company outsourcing. A PBX can be connected telephones, fax machines, modems and other communication devices.
Typically, the PBX equipment is installed in the organization itself and connects calls between phones in the organization and the telephone company. Normally, there are a limited number of external lines, called trunk lines, to make and receive calls outside the company from an external source such as the PSTN.

To enable a legacy PBX for use with Exchange 2007 Unified Messaging, you must implement a gateway IP compatible. For a list of IP gateways, see Telephony Advisor for Exchange Server 2007.

IP PBX An IP PBX is a PBX that has a network adapter compatible with the IP protocol. It is a piece of telephone switching equipment that normally resides in an organization or company rather than being located in the offices of a telephone company. There are two types of IP PBX: IP PBX and IP PBX traditional hybrid. Both traditional and IP PBX, IP PBX hybrid are consistent with the IP protocol for sending voice conversations in packets based VoIP phones. However, hybrid IP PBX also connects traditional analog and digital phones.

IP PBXs are frequently easier to manage than the legacy PBXs, because administrators can easily configure the IP PBX through an Internet browser or another IP-based tool. Furthermore, it is not necessary to install cables, wiring, patch panels or additional. With an IP PBX, to move an IP phone based simply unplug it and plug it back elsewhere. This avoids the costly services needed to move a phone from a legacy PBX provider. Likewise, organizations that own an IP PBX do not have to bear the additional costs of infrastructure needed to maintain and manage two separate networks for circuit switched and packet switched. For a list of supported IP PBX for Exchange 2007 Unified Messaging, see Telephony Advisor for Exchange Server 2007.

IP PBX Configurations

An IP PBX is a PBX that supports IP phones to connect through an Ethernet LAN or packet switching. Send IM conversations into data packets or IP. An IP PBX can have multiple interfaces. These include interfaces to a data network and other interfaces that allow connection to a telephone network or circuit switched.

The development of Internet protocols in real time has been correctly can send voice messages and faxes by a data network. Among these protocols of the Internet in real time including VoIP protocols that are used with Exchange 2007 Unified Messaging: Session Initiation Protocol (SIP) over Transmission Control Protocol (TCP) for voice and T.38 messages to faxes. These protocols have been successfully able to send voice messages and faxes by a data network. VoIP protocols in real time are necessary to maintain order and control the delivery and synchronization of data packets to send voice messages through a data network or circuit switched. Failure to use these protocols to maintain and control the delivery order and synchronization of data packets, the voice of the people would decompose and the sound would be inconsistent or images could be confusing. For more information about the VoIP protocols that are used in Exchange 2007 Unified Messaging, consulteDescripción protocols, ports, and unified messaging services. For a list of authorized IP PBX in the Exchange 2007 Unified Messaging, see Telephony Advisor for Exchange Server 2007.