Exhibit 99.1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including additional amendments thereto) with respect to the shares of Common Stock, no par value, of Radisys Corporation, an Oregon corporation. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

Dated:  November 12, 2014

Vertex Opportunities Fund, LP
By:	Vertex GP, LLC General Partner
By:		/s/ Eric Singer
		Name:	Eric Singer
		Title:	Managing Member

Vertex GP, LLC
By:	/s/ Eric Singer
	Name:	Eric Singer
	Title:	Managing Member

Vertex Special Opportunities Fund II, LP
By:	Vertex Special Opportunities GP II, LLC General Partner
By:	/s/ Eric Singer
	Name:	Eric Singer
	Title:	Managing Member

Vertex Special Opportunities GP II, LLC
By:	/s/ Eric Singer
	Name:	Eric Singer
	Title:	Managing Member

Vertex Capital Advisors, LLC
By:	/s/ Eric Singer
	Name:	Eric Singer
	Title:	Managing Member

/s/ Eric Singer

Eric Singer