Transmission Planning for Voiceband Services over Hybrid Internet/PSTN Connections - Series G: Transmission Systems and Media Digital Systems and Networks International Telephone Connections and Circuits - Transmission Plan Aspects of Special Circuits and
Transmission Planning for Voiceband Services over Hybrid Internet/PSTN Connections - Series G: Transmission Systems and Media, Digital Systems and Networks International Telephone Connections and Circuits - Transmission Plan Aspects of Special Circuits a