<div dir="ltr"><br clear="all"><div>Hello.<br><br><font face="monospace" size="1">kamailio -v<br>version: kamailio 5.4.8 (x86_64/linux) <br>flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED<br>ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB<br>poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.<br>id: unknown <br>compiled with gcc 8.3.0</font><br><br><br><span style="color:rgb(36,41,47);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px">How can I disable GRUU support completely?</span></div><div><font color="#24292f" face="-apple-system, BlinkMacSystemFont, Segoe UI, Helvetica, Arial, sans-serif, Apple Color Emoji, Segoe UI Emoji"><span style="font-size:14px"><br></span></font><br>Sip client Grandstream NT-XXX sends default registration request with "reg-id" and "instance"<br><br><font face="monospace" size="1">REGISTER sip:<a href="http://kamailio3.telecom.ru">kamailio3.telecom.ru</a> SIP/2.0<br>Via: SIP/2.0/UDP 172.17.0.252:5060;branch=z9hG4bK1645839794;rport<br>From: "7777" <a href="mailto:sip%3A7777@kamailio3.telecom.ru">sip:7777@kamailio3.telecom.ru</a>;tag=53756161<br>To: <a href="mailto:sip%3A7777@kamailio3.telecom.ru">sip:7777@kamailio3.telecom.ru</a><br>Call-ID: 308071885-5060-1<br>CSeq: 2031 REGISTER<br>Contact: sip:7777@172.17.0.252:5060;reg-id=1;+sip.instance="urn:uuid:00000000-0000-1000-8000-000B82566BBB"<br>Authorization: Digest username="7777", realm="<a href="http://kamailio3.telecom.ru">kamailio3.telecom.ru</a>", nonce="Ysv842LL+7dABGNcyuYZhl1L2QTPgzFq", uri="sip:<a href="http://kamailio3.telecom.ru">kamailio3.telecom.ru</a>", response="0ef43a754a7422dd9d8ed36f91aa546<br>, algorithm=MD5<br>Max-Forwards: 70<br>User-Agent: Grandstream HT-502 V2.0A 1.0.9.1 chip V2.2<br>Supported: path<br>Expires: 1800<br>Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE<br>Content-Length: 0<br><br>SIP/2.0 200 OK<br>Via: SIP/2.0/UDP 172.17.0.252:5060;branch=z9hG4bK1645839794;rport=5060;received=172.17.0.252<br>From: "7777" <a href="mailto:sip%3A7777@kamailio3.telecom.ru">sip:7777@kamailio3.telecom.ru</a>;tag=53756161<br>To: <a href="mailto:sip%3A7777@kamailio3.telecom.ru">sip:7777@kamailio3.telecom.ru</a>;tag=5bf75eb19869d3e257cd1fde2cbf92c4.7224507f<br>Call-ID: 308071885-5060-1<br>CSeq: 2031 REGISTER<br>Contact: sip:7777@172.17.0.252:5060;expires=1800;+sip.instance="urn:uuid:00000000-0000-1000-8000-000B82566BBB";reg-id=1, sip:07777@172.17.0.250:5060;expires=101, <sip:7777@172.1<br>0.250:5061>;expires=101, sip:7777@172.17.0.252:5062;expires=607;+sip.instance="urn:uuid:00000000-0000-1000-8000-000B82566BBB";reg-id=2<br>Server: kamailio (5.4.8 (x86_64/linux))<br>Content-Length: 0<br><br>REGISTER sip:<a href="http://kamailio3.telecom.ru">kamailio3.telecom.ru</a> SIP/2.0<br>Via: SIP/2.0/UDP 172.17.0.252:5062;branch=z9hG4bK212965390;rport<br>From: "7777" <a href="mailto:sip%3A7777@kamailio3.telecom.ru">sip:7777@kamailio3.telecom.ru</a>;tag=1540711120<br>To: <a href="mailto:sip%3A7777@kamailio3.telecom.ru">sip:7777@kamailio3.telecom.ru</a><br>Call-ID: 1127299103-5062-1<br>CSeq: 2031 REGISTER<br>Contact: sip:7777@172.17.0.252:5062;reg-id=2;+sip.instance="urn:uuid:00000000-0000-1000-8000-000B82566BBB"<br>Authorization: Digest username="7777", realm="<a href="http://kamailio3.telecom.ru">kamailio3.telecom.ru</a>", nonce="Ysv862LL+78cGZE/vXJnQfemhCMiBilm", uri="sip:<a href="http://kamailio3.telecom.ru">kamailio3.telecom.ru</a>", response="6c3333159d41ae0fcaabfbbd8c5026e<br>, algorithm=MD5<br>Max-Forwards: 70<br>User-Agent: Grandstream HT-502 V2.0A 1.0.9.1 chip V2.2<br>Supported: path<br>Expires: 1800<br>Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE<br>Content-Length: 0<br><br>SIP/2.0 200 OK<br>Via: SIP/2.0/UDP 172.17.0.252:5062;branch=z9hG4bK212965390;rport=5062;received=172.17.0.252<br>From: "7777" <a href="mailto:sip%3A7777@kamailio3.telecom.ru">sip:7777@kamailio3.telecom.ru</a>;tag=1540711120<br>To: <a href="mailto:sip%3A7777@kamailio3.telecom.ru">sip:7777@kamailio3.telecom.ru</a>;tag=5bf75eb19869d3e257cd1fde2cbf92c4.451b5a53<br>Call-ID: 1127299103-5062-1<br>CSeq: 2031 REGISTER<br>Contact: sip:7777@172.17.0.252:5060;expires=1792;+sip.instance="urn:uuid:00000000-0000-1000-8000-000B82566BBB";reg-id=1, sip:7777@172.17.0.250:5060;expires=93, <sip:7777@172.17<br>.250:5061>;expires=93, sip:7777@172.17.0.252:5062;expires=1800;+sip.instance="urn:uuid:00000000-0000-1000-8000-000B82566BBB";reg-id=2<br>Server: kamailio (5.4.8 (x86_64/linux))<br>Content-Length: 0</font><br><br>Later, when I use branching (with q=-1.0), the kamailio sends an Invite to only one Contact from <a href="http://7777@172.17.0.252:5062">7777@172.17.0.252:5062</a><br><br>If I use another Sip client without "instance" , such as Linksys-PAP2T, branching works fine.<br><br>GRUU is always disabled<br>modparam("registrar", "gruu_enabled", 0)<br></div><div><br></div><div><br></div><div><br></div></div>