Hello, Per the ENUM module documentation[1]: These functions assume that the Request URI user part consists of an international phone number of the form +decimal-digits, where the number of digits is at least 2 and at most 15. Two questions arise: 1. Why was this limit of 15 introduced? Is there some basis for it in the ENUM spec or in the way DNS works? 2. I need to feed considerably longer values to the ENUM server, and would like to use enum_pv_query() to do so. I don't see a check for len(s) > 15 in enum_pv_query_3(). Is it safe to increase the value of these constants to 50-100+? #define MAX_DOMAIN_SIZE 256 #define MAX_NUM_LEN 22 #define MAX_COMPONENT_SIZE (MAX_NUM_LEN * 2) /* separator, apex, ... This simplifies checks */ Or will it have some unpredictable effects? Thanks, -- Alex [1] http://kamailio.org/docs/modules/4.2.x/modules/enum.html#sec-overview -- Alex Balashov - Principal Evariste Systems LLC 235 E Ponce de Leon Ave Suite 106 Decatur, GA 30030 United States Tel: +1-678-954-0670 Web: http://www.evaristesys.com/, http://www.alexbalashov.com/