From src/core/parser/parse_uri.c
``` case SIP_URI_T: /* save the original sip: URI parameters in sip_params */ uri->sip_params=uri->params; if ((phone2tel) && (uri->user_param_val.len == 5) && (strncmp(uri->user_param_val.s, "phone", 5) == 0) ) { uri->type = TEL_URI_T; uri->flags |= URI_SIP_USER_PHONE; /* move params from user into uri->params */ p=q_memchr(uri->user.s, ';', uri->user.len); if (p){ /* NOTE: * specialized uri params (user, maddr, etc.) still hold * the values from the sip-uri envelope * while uri->params point to the params in the embedded tel uri */ uri->params.s=p+1; uri->params.len=uri->user.s+uri->user.len-uri->params.s; uri->user.len=p-uri->user.s; } else { uri->params.s=0; uri->params.len=0; } } else { uri->flags&=~URI_USER_NORMALIZE; } break; ```
So not an issue. the ``"user=phone" `` uri param changes the behavior of the parser.