Why You Need SIP Protocol for Voice Communications
Session Initiation Protocol (SIP) is the transport technology for person-to-person real time traffic over the Internet. 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 combined with video and instant messaging. Future improvements will enable SIP applications such as video conference calls, application sharing, home monitoring, and interactive gaming for businesses in Gray.
Producers of SIP components are rapidly creating innovative hardware and software to get the upper hand in this new Internet communications technique. SIP telephones, PC client software, SIP servers, routers, and firewalls are now on the market from companies such as Ingate Systems and Cisco.
Before installing a SIP plan in your company, you should consider the appropriate configuration of your corporate firewall to accept SIP. Many of the typical firewalls already installed in business offices are not developed to allow the SIP protocol. First, SIP media streams are transferred over dynamically allocated UDP ports that are often blocked on firewalls. Second, SIP clients within a firewall can not be reached using IP addresses since these addresses are local and unique to the LAN. Third, you need to ensure that either your T1 line broadband carrier or Metro fiber service is able to handle the SIP protocol from your internal network to the outside world. Your IT administrator will need to ascertain 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 situations for secure and private communications.
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As we go forward, our goal is to continually improve our product offerings. We now offer enterprise items usually used by bigger corporations, namely: OC3, MPLS network service, gigabit ethernet, and cloud computing bandwidth delivered over a fiber optic backbone. Many of our carriers also deliver complimentary managed Cisco routers for multi-year agreements. Mainly, our goal is to develop a bond with you - our client - that will certainly last for years to come. Earning your trust is exactly what we do all the time. Conserving you cash on inexpensive MPLS services is how we keep it.