Asterisk PJSIP Configuration for Home Assistant

This is a working Asterisk config that bridges Yealink SIP phones to Home Assistant Voice.

What This Does

• Yealink phone registers with Asterisk
• When you pick up the phone, it auto-dials extension 100
• Asterisk bridges the call to Home Assistant
• You can talk to Home Assistant Assist

How It's Built

pjsip.conf defines:

• [yealink] endpoint - Your phone registers here with username yealink / password password123
• [homeassistant] endpoint - Outbound connection to Home Assistant at 192.168.2.245:5060
• Codecs: OPUS, ULAW, ALAW, GSM (in that priority)
• direct_media=no - Audio goes through Asterisk, not peer-to-peer

extensions.conf routes:

• Extension 100 - The hotline (calls Home Assistant)
• Extension s - Offhook without dialing (auto-dials 100 after 4 seconds)
• Extension _X. - Any other digits forward to Home Assistant

Deploy

1. Backup your current configs:

   cp /etc/asterisk/pjsip.conf /etc/asterisk/pjsip.conf.backup
   cp /etc/asterisk/extensions.conf /etc/asterisk/extensions.conf.backup

2. Copy these files to Asterisk:

   scp configs/pjsip.conf root@<asterisk-ip>:/etc/asterisk/
   scp configs/extensions.conf root@<asterisk-ip>:/etc/asterisk/

3. Update these values in pjsip.conf:

   • Line with contact=sip:192.168.2.245:5060 → change IP to your Home Assistant
   • Line with match=192.168.2.245 → change IP to your Home Assistant
   • [yealink_auth] section → update username/password if you want different creds

4. Reload:

   asterisk -rx 'core reload'

   Or restart: systemctl restart asterisk

5. Set up the phone using YEALINK_SETUP.md