Cannot use landline

Level 1d
I am moving to another ISP. I ask them to port my old number from TPG. Currently I am still using TPG modem as I want to still be able to use landline. However, the phoneline is not working. How can I do it?
Hi there             

 Welcome to the community,


Could you please send me a PM (private message) with your CID (customer identication number) or your mobile phone number so can look at this service for you 



kind regards