ContributionsMost RecentMost LikesSolutionsRe: How to disable sip Alg I just talked to a T-Mobile technical support rep who told me that they do not support any VOIP except Ooma and they cannot disable SIP ALG to allow Magic Jack calls to work with all connections. Re: How to disable sip Alg Did you get an answer to this? I'm using Magic Jack and have pretty much the same problem - Incoming calls work great but when I call out, two thirds of the people I call cannot hear me. I've never had this problem until switching to T-mobile
