Mastering Voice over DSL: Network Architecture

Masters Voice over DSL – Network Architecture й 1999 CopperCom, Inc. Page 11 of 25 4.4. Voice over IP solutions. Like all other real DSL networks ….

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Mastering Voice over DSL: Network Architecture, Contents:

  1. INTRODUCTION … 2
  2. MARKET REQUIREMENTS FOR VOICE OVER DSL… 2
  3. NETWORK TOPOLOGIES FOR VODSL … 3
    3.1 CENTRALIZED ARCHITECTURE … 4
    3.2 DISTRIBUTED ARCHITECTURE … 5
  4. PACKET PROTOCOLS FOR DSL ACCESS NETWORKS … 6
    4.1 CURRENT PRACTICE IN DSL ACCESS NETWORKS… 7
    4.1.1 ILEC Architectures for DSL Access… 7
    4.1.2 CLEC Architectures for DSL Access … 8
    4.2 VOICE OVER ATM SOLUTIONS … 9
    4.2.1 Circuit Emulation … 9
    4.2.2 Loop Emulation… 9
    4.3 VOICE OVER FRAME SOLUTIONS … 10
    4.4 VOICE OVER IP SOLUTIONS… 11
    4.4.1 The Internet Telephony Protocol Stack… 11
    4.4.2 IP Trunking … 12
    4.5 VOICE OVER IP VS. VOICE OVER ATM OR FRAME… 13
  5. REQUIREMENTS ON THE DSL ACCESS NETWORK … 15
    5.1 ATM-BASED DSLAMS… 15
    5.2 FRAME-BASED DSLAMS … 15
    5.3 TRAFFIC MANAGEMENT … 16
    5.3.1 Use of rt-VBR Service Category … 16
    5.3.2 Voice Path Aggregation… 17
  6. VOICE COMPRESSION AND ECHO CANCELLATION… 18
    6.1 VOICE COMPRESSION ALGORITHMS… 18
    6.2 FAX AND MODEM TRANSMISSIONS … 20
    6.3 ECHO CANCELLATION… 20
  7. SIGNALING TRANSPARENCY… 21
    7.1 VOICEBAND SIGNALING… 21
    7.2 SUPERVISORY SIGNALING… 22
    7.2.1 Channel-Associated Supervisory Signaling… 22
    7.2.2 Common Channel Supervisory Signaling … 22
  8. NETWORK MANAGEMENT … 23
  9. CONCLUSION … 25

 

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