Re: [Sofia-sip-devel] Sending nua_invite - DNS Error 503

iOS doesn’t allow file access. You need to use iOS API to query DNS server IP which isn’t done for Sofia SIP yet. From: Alexander Heinrich alexan...@sn0wfreeze.demailto:alexan...@sn0wfreeze.de Date: Sunday, November 17, 2013 at 3:52 AM To:

Re: [Sofia-sip-devel] Sending nua_invite - DNS Error 503

Check and add this in libsofia-sip-ua/sresolv/sres.c #ifdef IOS_BUILD #include resolv.h #endif ... static sres_config_t *sres_parse_resolv_conf(sres_resolver_t *res, char const **options) { sres_config_t *c = su_home_new(sizeof *c); if (c) { FILE