Why You Need SIP Protocol for Voice Over IP
Session Initiation Protocol (SIP) is the transmission technology for person-to-person voice data 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 extended to handle IP telephony in conjunction with video and instant messaging. Future enhancements will enable SIP applications like video conference calls, application sharing, home monitoring, and interactive gaming for businesses in Perry.
Manufacturers of SIP hardware are quickly developing innovative hardware and software to take advantage of this new Internet communications method. SIP telephones, PC client programs, SIP servers, routers, and firewalls are now on the market from companies such as Ingate Systems and Cisco.
Before installing a SIP solution in your organization, you should take into account the appropriate configuration of your corporate firewall to support SIP. Many of the common firewalls already installed in business offices are not developed to allow the SIP protocol. First, SIP media streams are transferred over dynamically assigned UDP ports that are normally shut on firewalls. Second, SIP clients within a firewall can not be accessed using IP addresses because these addresses are local and unique to the LAN. Third, you need to ensure that either your T1 line carrier or Ethernet fiber carrier is able to handle the SIP protocol from your internal network to the outside world. Your IT manager will need to evaluate how to correctly support SIP to get around these technical challenges. By including a SIP proxy and registrar for managing the firewall, it is possible to deal with complicated SIP scenarios for reliable and private communications.
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Going forward, our objective is to continuously improve our product offerings. We now supply enterprise items typically used by bigger companies, specifically: fiber ethernet, MPLS network service, OC3, and cloud computing bandwidth delivered over a fiber optic backbone. Many of our service providers also supply cost-free managed Cisco routers for multi-year agreements. Mainly, our goal is to build a bond with you - our customer - that will last for years to come. Earning your trust is exactly what we do all the time. Conserving you money on inexpensive MPLS services is how we keep it.