Issues

• A stream connection the peer closed stays cached and every later request waits for Timer B/F

  restsend/rsipstack#160 · Filter by author tgeorge06 opened on Sep 30, 2026

• A 2xx that crosses the CANCEL of a dropped INVITE is never BYE'd (RFC 3261 §9.1, §15)

  restsend/rsipstack#158 · Filter by author tgeorge06 opened on Sep 30, 2026

• UAS cannot read the answer in the ACK when its 2xx carried the offer (offerless INVITE / re-INVITE)

  restsend/rsipstack#156 · Filter by author tgeorge06 opened on Sep 30, 2026

• Server INVITE transaction is confirmed by an ACK with a different CSeq (delayed ACK of an earlier re-INVITE)

  restsend/rsipstack#154 · Filter by author tgeorge06 opened on Sep 30, 2026

• In-dialog requests carry a UDP Via when sent over TCP (RFC 3261 §18.1.1)

  restsend/rsipstack#151 · Filter by author tgeorge06 opened on Sep 28, 2026

• Forked 2xx with a different To-tag is ACKed toward the first dialog's target; no dialog or BYE for it (RFC 3261 §13.2.2.4)

  restsend/rsipstack#150 · Filter by author tgeorge06 opened on Sep 26, 2026

• Client INVITE transaction auto-ACKs 2xx final responses — incorrect for proxy use (RFC 3261 section 17.1.1.2), and not suppressable from outside

  restsend/rsipstack#145 · Filter by author nbasil opened on Sep 24, 2026
  4

• Client INVITE 2xx auto-ACK opens a new connection to the Record-Route/Contact target instead of reusing the existing flow (connection-oriented transports / RFC 7118) → multi-second stall

  bug
  restsend/rsipstack#129 · Filter by author yashsntl opened on Jun 25, 2026
  4

• lib.rs claims RFC 6026 but transaction layer skips Accepted/Timer L/Timer M (§4, §7.1, §7.2, §8.5)

  restsend/rsipstack#127 · Filter by author andrico21 opened on Jun 14, 2026
  2