DL manuals Karel Telephone NT421 Technical Reference And User's Manual Karel NT421 Technical Reference And User's Manual - page 20 Manual is about: IP SIP Telephone set 123456789101112131415161718192021222324 Page of 24 Go Download Print this page Bookmark us NT42I Technical Reference and User Guide 13 SIP SETTINGS « ‹ Prev17181920212223Next › »