Ok, I solved the problem of load balance, two RB one to interface Splynx and the other to do Load Balance PCC. I did the texts and if I configure the PCC in Both Addresses the load Balance works perfectly, in this case the voip connections of the phone after two minutes fall systematically.
If I configure the PCC in Searc Address, the load balance does not work but the VoIP caller works perfectly. Dear Masters, do you have any suggestions? Thank you