SIP Trunking: Streamline Efficiency & Savings

SIP Trunking


With technology moving deeper into daily business operations, you need a partner to help implement the most cost-efficient measures. At Optus, we can help you increase efficiency, simplify basic operations and save substantial money. How? By implementing SIP trunking.

SIP trunking, an acronym for Session Initiation Protocol, was originally developed by the Internet Engineering Task Force, organized over 20 years ago to make the Internet work better by producing high-quality, relevant technical documents that influence the way people design, use and manage the Internet.


Simply put, SIP trunking is an option for large organizations to alter the way calls are coming in or going out of a facility, using a nonspecific number of circuits via the Internet or Internet Provider.

SIP trunking replaces the old copper lines that handle calls coming in and going out. With SIP-trunked systems, the “all circuits are busy” scenario becomes obsolete. SIP trunking allows an increased number of simultaneous lines on an “as needed” basis without bringing in additional equipment. With traditional circuits, the telephone system can only handle as many calls as there are circuits, whether all incoming or all outgoing or some combination of the two. If call traffic exceeds circuitry, callers—perhaps potential customers—are left listening to the raspy buzz of a busy signal.

SIP trunking also allows companies to right-size their communications by buying only the capacity they need. Another added advantage is the ability of businesses to purchase SIP trunk call paths in small increments, and then increase capacity as they grow.

Some providers offer “burstable” SIP trunking, which allows a business to temporarily use more concurrent call paths than contracted during high traffic situations, such as seasonal calling or temporary marketing campaigns.