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Optimizing ROI on Your Network Investment

SIP trunking improves your existing network and unified communications infrastructure with increased voice and mobile capabilities.


Social media took centre stage, as attendees were encourage by Allstream’s team members to take their SIP Trunking Survey on LinkedIn.

In the first part of expertIP’s interview with Art Schoeller, Principal Analyst of Forrester Research, we learned how packet-switched technologies allow companies to better utilize their voice facilities and gain network flexibility. Traditional circuit-switched networks carry voice traffic over multiple trunks, Schoeller explained, many of which are only used during high-activity periods such as seasonal sales spikes. With SIP trunking, a packet-switched protocol, voice transmissions seek out the most efficient route to their destination address, allowing for more flexible bandwidth allocation.

But there’s more to SIP trunking than enhanced network flexibility. Many voice applications can be compressed with SIP trunking, Schoeller told expertIP in the second part of his interview. “You can now fit more voice calls over the same physical facility with a SIP trunking connection,” he said. “Whereas you would get 23 or 24 channels on a T1 connection, you can get 50 or 60 simultaneous calls over the same facility with SIP.”

Art Schoeller, Principal Analyst for Forrester Research, explains how SIP trunking improves network and UC capabilities.

With circuit-switched technologies, a company with many locations – large headquarters and smaller offices – would need fixed trunks at all of its sites. “If you centralize and concentrate that traffic with SIP,” Schoeller said, “your utilization of those (remaining) trunks goes up.” That means fewer connections for IT staff to monitor and less hardware to purchase and manage.

SIP trunking also allows IT managers to efficiently and affordably integrate more home and remote workers into the unified communications infrastructure, giving those workers access to all of the company’s network capabilities. To gain even more cost savings and employee productivity, mobile phones can be seamlessly added to the company’s unified communications architecture through fixed mobile convergence.

“With fixed mobile convergence,” Schoeller said, “I can ring your land-line number at your office or your cell phone and these calls can be easily redirected. We were able to do that in the past, but it was just harder to do.”

To read the third part of our interview with Art Schoeller, go here.

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