XPhone mobile editions now support AES-256 media encryption

XPhone mobile editions now support AES-256 media encryption

XPhone Softphone Pocket PC Edition and XPhone Softphone Smartphone Edition now support AES-256 media encryption. 

If you consider that your conversations are proned to interception, then the combined AES-256 and xSIP solution may help.

See AES 256 Media Encryption section for further details.