Why You Need SIP Protocol for Voice Communications
SIP (Session Initiation Protocol) is the transmission technology for person-to-person voice traffic over the Web. Its defining specifications come from the SIP working group of the Internet Engineering Task Force. SIP provides access to the public switched telephone network for voice data at 3 kHz bandwidth and common number dialing using Voice over IP (VoIP). It can also be expanded to deal with IP telephony in conjunction with video and instant messaging. Forthcoming enhancements will enable SIP applications such as video conference calls, application sharing, home monitoring, and interactive gaming for businesses in Charlottesville.
SIP is commonly associated with a means to implement the functionality of common telephony over an IP network. It is replacing the older, less versatile protocols used in the past such as H.323 and MGCP. These earlier protocols worked at a very low level to link IP phones to the public telephone network. SIP, however, provides a sophisticated and straightforward way to network the enterprise. For example, SIP uses email addresses as the SIP address in place of a telephone number over the standard telephone network.
Before installing a SIP solution in your company, you should think about the appropriate configuration of your corporate firewall to accept SIP. Many of the typical firewalls already installed in business offices are not designed to allow the SIP protocol. First, SIP media streams are transmitted over dynamically allocated UDP ports that are often blocked on firewalls. Second, SIP clients within a firewall can not be accessed using IP addresses because these addresses are local and private to the LAN. Third, you need to ensure that either your T1 line broadband provider or Metro fiber carrier is able to handle the SIP protocol from your internal network to the outside world. Your IT administrator will need to evaluate how to properly support SIP to overcome these technical issues. By adding a SIP proxy and registrar for managing the firewall, it is feasible to deal with complicated SIP scenarios for secure and confidential communications.
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As we go forward, our wish is to continuously enhance our product offerings. We now offer enterprise products usually employed by larger firms, particularly: gigabit ethernet, MPLS network service, OC3, and cloud computing bandwidth delivered over a fiber optic backbone. Several of our carriers also provide free managed Cisco routers for multi-year contracts. Primarily, our objective is to develop a bond with you - our client - that will definitely last for years to come. Acquiring your trust is just what we do here. Conserving you money on low-cost broadband services is exactly how we keep it.