If the voicemail indicator is not lit red when someone left message on your voicemail, it means the Message Waiting is not enabled on the SPA. To enable message waiting on your SPA941, follow the steps below.?
Enabling Message Waiting?
Step 1: Press the Setup?on the SPA941.?
Step 2: Using Navigation??select Network (9).??
Step 3: Access the SPA941's web-based setup page.??
Step 4: When the web-based setup page appears, click Admin Login.?
Step 5: Click Ext1, look for Call Feature Setting then set Message Waiting to yes.?