Good Day!! After spending the better half of the day reading this website, asterisk, and this forums. I am about to change the plan our company is about to make in the next few days. Our office is set to purchase either a Panasonic KX TDE 100 or a Siemens hipath 3500 propriety phone system. We really have no need for IP telephony right now, but majority of the features we want require very expensive modules on the propriety brands I just mentioned. Some of them are: 1. voice mail, voicemail to email 2. Auto call attendant, auto change depending on time or date 3. software based fax receive 4. call recording, monitoring, accounting 5. future proof for possible call/contact center application (product support, we don't like outsourcing) I am planning on deploying Elastix on a IBM PC clone, using the following modules from OpenVox A. D110E -- 1-Port E1/T1 PRI PCI Express Card http://www.openvox.com.cn/products_deta ... =47&id=149 B. 2 units of A1200P 12-port FXO/FXS analog card http://www.openvox.cn/store/a1200p-p-28 ... 1894c.html Then I shall just use the cheapest available single line analog phones here. My questions are: a. Are those devices by OpenVox supported by Elastix? Has anyone here actually tried them. b. Is caller ID supported? Can it be passed to the individual single line analog phone units? c. My E1 PRI is just fractional, with only 10 live circuits. Will this be a problem? d. I plan to get an atom CPU, 1gb of memory, 1TB of storage. e. Are there specific questions I should be asking my telco provider regarding their E1 PRI ISDN line? To make sure it would work on this setup. Advance thanks. I'd appreciate any comments, suggestions.