Telegram Bot SIP Call Bridger

I need a small script that sits behind a Telegram bot and lets me act as a one-click switchboard. Once I send a simple command, the bot should prompt me for two phone numbers: the target number I want to call and a separate bridge number. Using the SIP credentials I’ll supply at launch, the script must dial both parties, then join the two calls onto a single audio line so they can speak freely.

Key points
• The only Telegram interaction beyond the initial /start will be straightforward command execution—no extra messaging features, auto-responses, or logging.
• I do NOT want any call-detail records stored; the moment the bridge ends, nothing should be written to disk.
• Numbers can be entered directly in chat; the bot simply asks and parses the plain text reply.

Deliverables
– A well-commented script (Python preferred, but I’m open) that logs in to my SIP account, triggers two outbound calls, and bridges them.
– The Telegram bot wrapper with commands to collect the two numbers and trigger the bridge.
– A brief README covering setup (bot token, SIP credentials) and the single operational flow.

If you’ve worked with libraries such as PJSIP, Asterisk AGI, or Telethon and can keep the deployment light, let’s get this running.