Ask the Telecom Pro
Q: What’s the difference between SIP and VoIP?
A: VoIP is a term that means voice communications over IP networks. There are many different proprietary and open source protocols that can be used to deliver VoIP. Session Initiation Protocol, or SIP, is a specific protocol used to achieve VoIP. While SIP is a method of VoIP, not all VoIP is SIP.
Q: Are state taxes for cell phones assessed based on the area code for the service number?
A: No. Taxes are assessed based on subscriber mailing address, not the area code of the service number. For reference, Nevada has the lowest state tax at 1.9% and Washington state has the highest at 18.6%.
Timothy C. Colwell is a telecom management industry thought leader exploring the impact of technology as a business accelerator and social capital enabler.