We are trying to build a SIP transit server for our enviroment. It could be based on any kind of
softswitch and capable to handle min 2000 concurent calls. The min requirements are Dynamic DID routing and Extended Dial Plan. It should be biderctional server In<=>Out. we tried DIDOSS based on YATE, OpenSIPS and CPanel for it and Sipwise. Our knowledge is not enough and in order to save a time we are looking for somebody to install and configure for us. Copmpensation could be more if the esential reason is present. Any other solutions including comercal application are welcome. Asterisk, Brekeke and Pbxnsip are excluded.