How to forward port 5065 from Vodafone router to my asterisk server?

[ritz]

I've got the THG3000 from VF. I'm keeping it only until I find a way to reliably use own ATA or asterisk to enable the Vodafone digital landline over the FTTP. 

The problem is that the THG3000 won't let me forward port 5065 to any port on my servers in the LAN. Here is the error message: "The selected port cannot be configured as it is reserved for internal usage. Please use a different port." I know this is the VF SIP port for the digital phone. Anyone had success otherwise?

My firmware is: 19.4.0551-3261103.

[Ripshod]

You won't be able to do this as that port is locked to the built-in ATA in the vodafone router. You'll need to get your own router up and running first. 

[CrimsonLiar]

Where that port isn't locked is in the Asterisk device!  So you can change it on there and then forward it!

*For the sake of security, few of my devices are on their default ports!  Such little things won't deter an expert, but most script kiddies will go look for an easier target!