Tg2SIP is a Telegram <-> SIP voice gateway. It can be used to forward incoming telegram calls to your SIP PBX or vice versa.

Your SIP PBX should be comaptible with L16@48000 or OPUS@48000 voice codec.

1. Obtain binaries in one of convenient ways for you.
2. Obtain api_id and api_hash tokens from this page and put them in settings.ini file.
3. Login into telegram with gen_db app
4. Set SIP server settings in settings.ini
5. Run tg2sip

SIP -> Telegram calls can be done using 3 extension types:

1. tg#[\s\d]+ for calls by username
2. \+[\d]+ for calls by phone number
3. [\d]+ for calls by telegram ID. Only known IDs allowed by telegram API.

All Telegram -> SIP calls will be redirected to callback_uri SIP-URI that can be set in from settings.ini file. Extra information about Telegram account caller will be added into SIP headers:

• X-TG-Context: Special header for debug purpose
• X-TG-ID: Telegram User Id
• X-TG-FistName: Optional, User first name
• X-TG-LastName: Optional, User last name
• X-TG-Username: Optional, User username
• X-TG-Phone: Optional, User phone number

git clone https://github.com/hectorvent/tg2sip
cd tg2sip

./build.sh

# build directory will be create and gen_db, tg2sip and settings.ini will exist

# Install dependencies.
apt install libopus0 libssl1.1 -y

# Create directory structure
mkdir /etc/tg2sip
mkdir /var/tg2sip

cp build/{tg2sip,gen_db} /usr/local/bin

# nano/vi /etc/tg2sip/settings.ini and change necessary values.
cp settings.ini /etc/tg2sip/

# Copy systemd service
cp tg2sip.service /etc/systemd/system
systemctl daemon-reload

# create Telegram Tdlib db and fill the requested information
sudo TG2SIP_STANDARD_FOLDER=YES gen_db

# start the tg2sip gateway and enjoy it.
systemctl start tg2sip.service

Docker Tg2SIP image is based on Debian 10

cd docker
cp ../settings.ini etc
# Edit settings file
nano etc/settings.ini

# Generate Telegram db
docker run --rm -it -v `pwd`/etc:/etc/tg2sip/ -v `pwd`/data:/var/tg2sip/  hectorvent/tg2sip-gateway gen_db

# start docker services
docker-compose up -d

• Upgrade Tdlib to new version.
• Integration examples with Asterisk, FreeSwitch and Kamailio.
• A better Tdlib db initialization process. It is possible to create an API.

As this repo is based on Infactum/tg2sip make donation to Infactum.