Every phone system and carrier has different specifications. We highly recommend that you check in with your phone system before purchasing to find out their requirements for uploading files. If you want to test before you purchase, you can download our Sample Test pack, which contains a short test for you to upload and verify your system.
Please note that some systems do not allow you to upload a file. In that case, we advise playing the file on your computer, and holding a telephone to the computer speakers (please note, this will likely result in a lower quality recording and should be used as a last resort, Instant Voicemails is not responsible for a loss of quality caused by using this method.
for specific information on uploading to several of the most common phone systems.