VOS3000 caller source header selection configures CLI extraction from From, Remote-Party-ID, or Display headers. Accurate caller ID for mapping gateway routing.
VOS3000 SIP Display From: Important E164 Caller Configuration
Master VOS3000 SIP display from with SS_SIP_E164_DISPLAY_FROM. Configure E164 caller format in From header, per-gateway display modes, caller presentation, and mapping gateway number extraction.