VOIP configuration parameter

Hi! I’m a newbie of Ignition… I’m trying to set the VOIP account but I’ve some problem…
I want to use an existing Voip account that already work correctly with “Blink Voip Software” but not with Ignition.
I’ve already correcly configured a sip2sip.info account so it’s not an host trouble…
The only “particular” difference is that the not working account has a 64 char password… How many char of password can handle Ignition?
Thank you!