We have already done all the research, it seems possible, but it is so difficult that I'm not sure if it's worth it.
Most WISPs want to mangle Skype to control or even block it due bandwith consumption reasons or they want to sell their own Voip services. Skype is so clever that it seems to be impossible to control unless you're willing to give up most of your connectivity to the internet.
But what about helping Skype? If you have plenty of bandwith available but want to quarantee Skype connectivity even under the circumstances the network might become congested, Qos. There must be ways to help Skype.
OK, the new router OS might have a SIP helper, but does it help Skype?
And what about having a big network with v2.9 OS only? We don't want to change to the new v3.xx untill it is thorougly tested and been proven stable.
Skype client software can be installed with setting for use with given ports. The network operator should assign a block of ports in the high regions (not in use by other applications) and instruct Skype users to alter their installation of Skype to have a port assigned in that block of ports? Have udp and tcp traffic in this port range prioritized with the max. tos value.
At the same time have the mangle for that range of ports filter P2P programs we don't want.
Is this a route to go?
Both Skype and MT must be happy if their product can do something good for eachother?
As Wisp the gain would be Skype promotion for the network! Skype is very popular and networks not serving it well will struggle in the end. Its better to go with the flow....
Some of you cracks at MT must be able to achieve something in this field?