you can use the WhatsApp Business app to use access WhatsApp via your landline.
after installing WhatsApp Business on your phone all you need to do is follow these steps:
1 – a prompt will ask you to select your country code and landline number.
2 – Enter the landline number here. and Remove the ‘0’ from the beginning of the landline number.
3 – Since it is a landline, you won’t be able to see the OTP message. So Wait for a minute till verification by SMS fails.
4 – Now The WhatsApp Business app will show the other Call Me option. Tap on that.
5 – you will receive a call wherein an automated voice will tell you your verification code.
6 – Now enter this code WhatsApp Business app to verify your number.
7 – Once verification is complete, you can use using WhatsApp using Landline number now You can use it to send a Whatsapp API message using Ultramsg.
If your number is linked to Facebook Business or to a WhatsApp provider, you must remove the number from Facebook first so that you can use the number on your mobile phone.