I need your recommendation of a server hardware specifications that will be used for the Sangoma 8-E1s card? Knowing that it will be used as an IVR server through Asterisk (playing wav Mu Law Mono 8KHz) and will be connected to network operator through SS7 links (libSS7 or ChanSS7 will be used on the same server). Also, 240 concurrent calls will be active most of the time and we need to guarantee efficient performance without any delay or any distortion in playing the wav files. Thanks in advance. Awaiting your feedback.