[Serusers] ENUM comfort query, uri mangling

Hi everyone! I want to implement an ENUM query in my routing block with comfort. I want ENUM queries always to be done because VoIP-Calls are cheaper than PSTN-routed ones. I want to let the user request e.g. "sip:089123456@mydomain.org" and the script should query for "6.5.4.3.2.1.9.8.9.4.e164.arpa" (I'm in munich (prefix 089), germany (prefix +49); a single zero indicates long distance calls, two zeros indicate international calls, local calls don't have leading zeros) The idea is to complete the requested uri to be a e164 address and then start a query The logic should be like: if (uri_is_e164) { if (do_enum_query) t_relay; } else if (uri =~ "sip:0[1-9][0-9]{1,14}@.*") { # national call replace "leading 0" with "+49"; if (do_enum_query) t_relay; } else if (uri =~ "sip:00[1-9][0-9]{1,13}@.*") { # international call replace "leading 00" with "+"; if (do_enum_query) t_relay; } I don't get the hang of those textops functions because sometimes they work and sometimes they don't, especially after other modules have been changing the uri. In addition, if one of those enum-queries fails, the uri should be reverted to the original one (with "0" or "00"). How would the correct ser.cfg-script look like? Alex Mack