How to configure bonding for mobile broadband 4g dongles in jetson nano

Actually I did connect both ppp0 and ppp1 using wvdial. But now I wish to make a balance-rr(mode 0), and thought that bonding would do that for me. I need to know if its possible, because when I’m searching, I only see people bonding Ethernet interfaces. When I tried to use ppp0 and ppp1 as slaves for bond0, I got some errors when restarting the network.

Is bonding capable of dealing with ppp0 and ppp1 mobile broadband 4g dongles?
Then if anyone done this setup kindly guide me.
Thanks.