Voice Protocols
Ref: ITU-T Recommendation Q.767 / E.164
CLI / Direct Routes
Caller Line Identification Verified Routes
Direct Telecom Definition • Carrier Industry Standard
Wholesale voice routes configured to pass authentic caller ID and ISUP signaling with zero CLI manipulation or grey transit.
Technical Definition & Carrier Engineering Standards
CLI-certified routes terminate exclusively through direct bilateral interconnects with Mobile Network Operators (MNOs) and Tier-1 telcos, ensuring local caller identification, roaming delivery, and enterprise compliance.