Sipgate and a softphone for iPhone/iPod touch

Since I rely on different types of DTMF transfer protokols using sipgate (either inband for my telefone system at home for remote control, or info for the sipgate answering machine) I looked for a free and reliable softphone for my iPod touch and found Media5-fone. Works out of the box, has even a setup for sipgate and all DTMF modes work perfectly out of the box.