Threshold supports TDM PRI voice circuits.  However, most enterprises have moved to SIP trunks and not all SIP trunks are alike…

• Threshold has a geo-redundant voice network that protects clients from single points of failure.
• DIDs are available in most of the US/Canada including Hawaii and Alaska.
• Our flat rate SIP trunk includes all local usage.
• Customers can connect via public internet, private transport or via most major carrier hotel marketplaces.
• Burst trunk capability above your commitment level.  So when you have occasional peak usage, you can process the calls.
• Fast and easy setup of your services
• Toll-free carrier redundancy. Threshold will put your Toll-free number on multiple carriers to reduce the impact of any carrier issues.

To learn more about SIP Trunks, email sales@thresholdcommunications.com