Liens persistants.
Voies de transport.
À l'échelle de l'Afrique.

# pip install smpplib
import ssl, smpplib.client, smpplib.gsm, smpplib.consts

# TLS 1.3 context (required)
ctx = ssl.create_default_context()

client = smpplib.client.Client(
    'smpp.esmsafrica.io', 2775,
    allow_unknown_opt_params=True,
    timeout=30,
)
client.connect(ssl=ctx)
client.bind_transceiver(
    system_id='YOUR_SYSTEM_ID',
    password='YOUR_PASSWORD',
)

# Register DLR handler (deliver_sm callbacks)
def dlr_received(pdu):
    msg = pdu.short_message
    if isinstance(msg, bytes):
        msg = msg.decode('latin-1')
    print(f"DLR: {msg}")

client.set_message_received_handler(dlr_received)

# Send a message (GSM-7, with DLR)
parts, enc, msg_type = smpplib.gsm.make_parts('Your OTP is 482910')
for part in parts:
    resp = client.send_message(
        source_addr_ton=smpplib.consts.SMPP_TON_ALNUM,
        source_addr_npi=smpplib.consts.SMPP_NPI_UNK,
        source_addr='eSMSCo',
        dest_addr_ton=smpplib.consts.SMPP_TON_INTL,
        dest_addr_npi=smpplib.consts.SMPP_NPI_ISDN,
        destination_addr='+254712345678',
        data_coding=enc,
        esm_class=msg_type,
        short_message=part,
        registered_delivery=1,
    )
    print(f"Queued: {resp.message_id}")

# Block and process inbound PDUs
client.listen()