Hey,This articles gives a descriptive explanation on how to change the dial out prefixConfiguration of Outgoing Dial Plan on UC500 SeriesRegards,Vishal

Hi ,This article might be helpful for you.Access the Web Configuration Utility on the SPA122Vishal.

HI,I think this article would be helpful for youMusic on Hold on UC320WThanks

Hi,• The internal music on hold file is limited to 60 seconds. • Each AA prompt file is limited to 120 seconds. • The supported audio file formats are MP3, WAV, WMA, AAC, and AIF.

Hi,• The internal music on hold file is limited to 60 seconds. • Each AA prompt file is limited to 120 seconds. • The supported audio file formats are MP3, WAV, WMA, AAC, and AIF.