simple-sip-client 0.1.0

Pure-Python SIP VoIP client library

simple-sip

Pure-Python SIP VoIP client library (no external dependencies for SIP/RTP).

Project Structure

voip/
├── README.md
├── setup.py
├── pyproject.toml
├── hold-queue-config.json
├── demo.py              # Interactive SIP client demo
├── hold-queue.py        # Music-on-hold with announcements
├── queue-demo.py        # Simple audio streaming demo
├── debug_audio.py       # RTP audio dump tool
├── main.py              # CLI-based SIP client
└── src/
    └── simple_sip/      # Python package
        ├── __init__.py
        ├── sip_client.py   # SIP client (register, call, events)
        ├── sip_message.py  # SIP message parser/generator
        ├── sip_auth.py     # Digest authentication
        ├── sip_transport.py # UDP transport
        ├── sip_sdp.py      # SDP parser/answer/offer
        ├── sip_media.py    # RTP media stream
        └── ringtone.py     # Ringtone player

Installation

pip install -e .

Then use from any script:

from simple_sip import SIPClient

Or run demos directly (auto-adds src/ to path):

python demo.py
python hold-queue.py

Demos

• demo.py – Interactive SIP client (receive/make calls)
• hold-queue.py – Auto-answer with music-on-hold + announcements
• queue-demo.py – Stream audio file as RTP to caller
• debug_audio.py – Save incoming RTP audio to WAV files
• main.py – CLI with --on-invite scripts

Configuration

Edit hold-queue-config.json for hold-queue.py settings. Environment variables SIP_SERVER, SIP_PORT, SIP_USER, SIP_PASS override defaults in demo scripts.

License

MIT