Interphase Corporation to Present at the Southwest IDEAS Investor Conference

Interphase Corporation (NASDAQ: INPH), a leading global provider of solutions for converged communications networks, today announced that company executives will present at the Southwest IDEAS Investor Conference on Wednesday, November 16, 2011. The Interphase presentation is scheduled to begin at 3:00 p.m. CST (4:00 p.m. EST). The conference will be held at the Hilton Anatole in Dallas, Texas on November 16 & 17, 2011.

To listen in at 3:00 p.m. CST on November 16, use this link for the audio webcast: http://www.wsw.com/webcast/threepa6/inph. The session will also be available for playback after November 18 on the Investors page of the Interphase web site: www.iphase.com/investor/.

The IDEAS investor conferences are annual independent venues allowing quality public companies to tell their stories to professional investors with the express purpose of generating investor interest. The IDEAS Investor Conferences are held annually in Boston, Chicago and Dallas and are produced by Three Part Advisors, LLC with sponsorships from the regional investment communities in which they are held. Additional information about the events can be located at www.IDEASconferences.com.

About Interphase Corporation

Interphase Corporation (NASDAQ: INPH) delivers solutions for LTE and WiMAX, interworking gateways, packet processing, network connectivity, and security for key applications for the communications and enterprise markets. The company also offers a comprehensive portfolio of desktop virtualization solutions. Founded in 1974, Interphase provides expert engineering design and electronics manufacturing services, in addition to its commercial-off-the-shelf (COTS) product portfolio. Interphase is headquartered in Plano, Texas, with sales offices in the United States and Europe. Clients include Alcatel-Lucent, Emerson Network Power, Fujitsu Ltd., Genband, Hewlett Packard, ip.access, Oracle, and Samsung. Visit www.iphase.com.

Interphase, the Interphase logo, iSPAN, and iSAR are trademarks or registered trademarks of Interphase Corporation. All other trademarks are the property of their respective owners.