Hi, I have installed a few weeks ago an Elastix 2.0 server on IBM x3200. The thing here is that we are using SIP phones and Unistim (Nortel Phones). I managed to make Nortel phones to work properly, however, if they try to transfer a call using the telephone button to a SIP extension, Asterisk dies!! I guess chan_unistim is broken with this functionality. Here is how I define unistim extensions, if you see anything wrong, plese let me know. unistim.conf Code: [general] port=5000 ; UDP port [nortel3843] ; name of the device device=00140D0038ED maintext0="Fatima Rivera" ; default = "Welcome", 24 characters max callerid="Fatima Rivera" <3843> context=from-internal ; context, default="default" callgroup=1 pickupgroup=1 language=es qualify=yes mailbox=3843@device ; Specify the mailbox number. Used by Message Waiting Indication linelabel="3843" ; Softkey label for the next line=> entry, 9 char max. rtp_port=10000 ; RTP port used by the phone, default = 10000. RTCP = rtp_port+1 rtp_method=3 ; If you don't have sound, you can try 1, 2 or 3, default = 0 status_method=0 ; If you don't see status text, try 1, default = 0 titledefault=TimeZone Americas/Caracas ; default = "TimeZone (your time zone)". 12 characters max extension=line ; Add an extension into the dialplan. Only valid in context specified previously. ; none=don't add (default), ask=prompt user, line=use the line number dateformat=1 ; 0 = month/day, 1 (default) = day/month timeformat=0 ; 0 = 0:00am ; 1 (default) = 0h00, 2 = 0:00 contrast=8 ; define the contrast of the LCD. From 0 to 15. Default = 8 country=us ; country (ccTLD) for dial tone frequency. See README, default = us ringvolume=3 ; ring volume : 0,1,2,3, can be overrided by Dial(), default = 2 ring ; ring style : 0 to 7, can be overrided by Dial(),default=3 callhistory=1 ; 0 = disable, 1 = enable call history, default = 1 line => 3843 ; Only one line by device is currently supported. ; Beware ! only bookmark and softkey entries are allowed after line=> bookmark=Buzon Voz@*97@54 ; 54 shows a mailbox icon. See #define FAV_ICON_ for other values (32 to 63) If you find something or know how to avoid this, I will greatly appreciate your comments. Best regards. Andres.