SIP 200 OK vs 493 Undecipherable
SIP 200 (OK) is a 2xx Success response, while 493 (Undecipherable) is a 4xx Client Failure response. 200 indicates that the request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully. In contrast, 493 means that the request body was encrypted with S/MIME but the server cannot decrypt it. The server may lack the necessary key or certificate.
Deskripsi
The request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully.
Ketika Anda Melihatnya
When a call is answered (INVITE 200 OK), a registration succeeds (REGISTER 200 OK), or a subscription is accepted (SUBSCRIBE 200 OK).
Cara Memperbaiki
No fix needed — this is a success response. The caller should send an ACK to complete the three-way handshake for INVITE transactions.
Deskripsi
The request body was encrypted with S/MIME but the server cannot decrypt it. The server may lack the necessary key or certificate.
Ketika Anda Melihatnya
When using S/MIME encryption for SIP message bodies and the recipient does not have the corresponding decryption key.
Cara Memperbaiki
Ensure the recipient has the correct S/MIME certificate and private key. Consider using TLS for transport-layer encryption instead.
Perbedaan Utama
200 is a 2xx Success response, while 493 is a 4xx Client Failure response.
SIP 200: The request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully.
SIP 493: The request body was encrypted with S/MIME but the server cannot decrypt it. The server may lack the necessary key or certificate.
You encounter 200 when when a call is answered (INVITE 200 OK), a registration succeeds (REGISTER 200 OK), or a subscription is accepted (SUBSCRIBE 200 OK).
You encounter 493 when when using S/MIME encryption for SIP message bodies and the recipient does not have the corresponding decryption key.
Kapan Menggunakan Yang Mana
For 200 (OK): No fix needed — this is a success response. The caller should send an ACK to complete the three-way handshake for INVITE transactions. For 493 (Undecipherable): Ensure the recipient has the correct S/MIME certificate and private key. Consider using TLS for transport-layer encryption instead.