Why You Need SIP Protocol for Voice Communications
Session Initiation Protocol (SIP) is the transport technology for person-to-person real time 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 expanded to handle IP telephony combined with video and instant messaging. Future enhancements will enable SIP applications such as video conference calls, application sharing, home monitoring, and interactive gaming for businesses in Elgin.
Manufacturers of SIP equipment are quickly designing new products and software to get the upper hand in this new Internet communications method. SIP telephones, PC client software, SIP servers, routers, and firewalls are now on the market from companies such as Ingate Systems and Cisco.
Before setting up a SIP solution in your business, you should think about the proper configuration of your corporate firewall to accept SIP. Many of the common firewalls currently deployed in business offices are not developed to allow the SIP protocol. First, SIP media streams are transmitted over dynamically allocated UDP ports that are usually blocked on firewalls. Second, SIP clients within a firewall can not be reached using IP addresses because these addresses are local and private to the LAN. Third, you need to ensure that either your T1 line carrier or Ethernet fiber carrier is able to support the SIP protocol from your internal network to the outside world. Your IT administrator will need to evaluate how to properly support SIP to get around these technical issues. By adding a SIP proxy and registrar for managing the firewall, it is feasible to handle complicated SIP scenarios for reliable and confidential communications.
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As we go forward, our objective is to constantly enhance our product offerings. We now deliver business products typically used by bigger companies, specifically: OC3, MPLS network service, gigabit ethernet, and cloud computing bandwidth delivered over a fiber optic backbone. Many of our carriers even provide cost-free managed Cisco routers for multi-year agreements. Primarily, our objective is to build a bond with you - our customer - that will last for years to come. Acquiring your trust is what we do all the time. Conserving you money on low-cost Ethernet services is precisely how we keep it.