Thanks, Daniel. I was skipping over the md5sum errors (I already had it installed, but under Solaris it becomes gmd5sum - a quick symlink sorted it out) because I thought the awk errors were quite serious. Should've looked a bit closer before posting because it turns out, again, to be another Linux-biased script ... Lines 135 and 136 in /usr/local/lib64/openser/openserctl/openserctl.base need the space removing before the @ sign. Solaris awk does not allow whitespace before the parameter. After sorting that out and symlinking gmd5sum, the add user script worked and I can now register a SIP User Agent - which is a great leap fwd ... Many thanks, Peter. -- Peter Edwards tel +44 (0) 1473 606492 This Personal email contains my own opinions, sent In Confidence and does not represent the views of British Telecommunications plc. __________________________________________________________________ British Telecommunications plc Registered office: 81 Newgate Street London EC1A 7AJ Registered in England no. 1800000 This electronic message contains information from British Telecommunications plc which may be privileged and confidential. The information is intended to be for the use of the individual(s) or entity named above. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. If you have received this electronic message in error, please notify us by telephone or email (to the number or address above) immediately. Activity and use of the British Telecommunications plc email system is monitored to secure its effective operation and for other lawful business purposes. Communications using this system will also be monitored and may be recorded to secure effective operation and for other lawful business purposes.