SIP server or testing tool written in Rust.

Features:

• Passwordless registration
• Subscriptions (200 OK and NOTIFY without content)
• Regular calls (B2BUA and Proxy):
  • INVITE (call, hold, resume)
  • CANCEL
  • BYE
  • REFER (transfer)

Usage:

cargo run <ip> <port>

Limitations

It uses libsip that isn't yet RFC3261-compliant. Open issues in libsip if the server shows any parsing errors.

It accepts connections via TCP and UDP.

Suggestions are really appreciated.

Documentation

Message flow