[SR-Users] carrierroute module cannot use prefix that start with +

Hello there, I'm using carrierroute module to route calls based on prefix, everything was working until i tried use prefixes that start with +, kamailio core doesn't allow me use the + on carrierroute prefix, i get the following message from kamailio logs: INFO: carrierroute [cr_carrier.c:100]: add_domain_data(): adding domain 1 'main' to carrier 1 'carriers'35(17196) DEBUG: carrierroute [cr_carrier.c:101]: add_domain_data(): domain position 0 (domain_num=1, first_empty_domain=0)35(17196) INFO: carrierroute [cr_data.c:414]: get_domain_data_or_add(): added domain 1 'main' to carrier 1 'carriers'35(17196) INFO: carrierroute [cr_data.c:470]: add_route(): found carrier and domain, now adding route 35(17196) ERROR: <core> [dtrie.c:130]: dtrie_insert(): cannot insert non-numerical character 35(17196) ERROR: carrierroute [cr_domain.c:168]: add_route_to_tree(): cannot insert route flags into d-trie anyone can help in order allow use + in carrierroute prefix. Best regards José Seabra