Microsoft Skype for Business SIP Trunks

Microsoft Skype for Business Enterprise Voice integration

Pure IP has been providing SIP trunks for Skype for Business and Lync nationally and to global customers for over 6 years. Our knowledge and expertise help customers navigate the implementation of Enterprise voice or the migration of services.

Pure IP Skype for Business SIP trunks offers your company HD quality voice calls that are delivered directly to your Mediation Server or Session Border Controller.

Our service offers the protection of fully encrypted signaling and media channels ("TLS"). This enhanced security capability eliminates the need to pay for a dedicated ISDN or MPLS data link for your Skype for Business Voice calls, and it enables you to securely route communications over your main corporate Internet and data connections.

Pure IP’s Skype For Business SIP trunks have been fully qualified for Lync 2010 and 2013 in the Microsoft Unified Communications Open Interoperability Program since 2010. Pure IP is one of only a few sip trunk providers in the US certified with Microsoft to provide TLS and SRTP security for Skype for Business.

Combining our SIP Trunking with the Microsoft Skype for Business Delivers a Number of Benefits:

  • No SBC equipment required to connect Skype for Business voice trunks with Pure IP.
  • Automatic data center failover for redundancy.
  • Disaster Recovery plan for emergency routing to alternative IP addresses or PSTN numbers
  • Near real-time call detail records accessed via our secure portal.
  • Access to International local numbers in over 75 countries.
  • Support comfort noise.
  • Full PSTN feature set delivered over SIP and DID portability in all US states and 26 International countries.
  • Improved call security with call encryption (TLS)/SRTP.


Free Trial

Pure IP offers all prospective customers the opportunity to try the service before they commit. Our terms for the trial are for a 14 day period, and we will provide you with 10 DID, five voice channels, $20 calling credit, and the necessary engineering time to set up the trial.

To obtain more information on deploying Microsoft Skype for Business voice trunks or participating in our 14-day trial, please call 415 481 6050, or email, or register here.