We have a 3 stage implementation plan with a customer, we're still documenting the structure, it is of course subject to change so I welcome all your comments on this matter. customer has one main building and 5 more. All inter-connected with fiber optics links for data/voice traffic. Main building holds the datacenter. proper network gear (switches and routers) are being deployed by another company to the customer. On stage one, the customer wants to have a FAX server. They read about using asterisk as a fax server and also read about Hylafax they also read about astfax+trixbox. The setup must compete against MS windows solutions that do fax-to-email and email-to-fax, we must keep deployment of software to the client machines to a minimum. The customer is looking to deploy an E1 so faxes have 30 channels to receive and send faxes, the server must communicate with an MS Exchange 2003 server. On stage two, there will be an asterisk server to handle PSTN calls (in and out)using E1 lines /about 4 E1s. We think that due to the load (500+ SIP users in main building) voicemail should be handled by a different server. Then On stage 3, another server???, serving SIP users in the main building to connect to the other buildings that will also have a little less powerful IP-to-SIP and/or IP-to-FXS asterisk (those server may have PSTN connectivity). Some form of config backups and/or disaster recovery plans must be documented as well as taking images of the RAID systems that will be using asterisk. I'm expecting full server details on this one, because the customer will provide the equipments (servers). So your comments will be appreciated. Thanks, -- ------------------------------------------------------------ Erick Perez Panama Sistemas Integradores de Telefonia IP y Soluciones Para Centros de Datos Panama, Republica de Panama Cel Panama. +(507) 6694-4780 ------------------------------------------------------------