Hi All

I have smstools running well with 4 USB modems. Each modem is a different make/model.

I now want to add more modems with the same make model. I use this post to make sure i always have the same device name after reboot. http://smstools3.kekekasvi.com/topic.php?id=482

In this method I specify the modem device by its unique variables (sudo udevadm info --query) but when you have multiple modems with identical variables how can you tell them apart?

Check this post: [solved] Multiple GSM Modems

It creates "port labeling" which solves the issue.