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Unified Communication Infrastructure

Unified Communication Infrastructure. UCI. Cisco Unified Communications Manager Signaling and Media Paths. Cisco Unified Communications Manager Express. Signaling Protocol (SCCP / SIP). Signaling Protocol (SCCP / SIP). Media Exchange — (RTP). IP Phone A. IP Phone B.

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Unified Communication Infrastructure

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  1. Unified Communication Infrastructure UCI

  2. Cisco Unified Communications Manager Signaling and Media Paths Cisco Unified Communications Manager Express Signaling Protocol (SCCP / SIP) Signaling Protocol (SCCP / SIP) Media Exchange — (RTP) IP Phone A IP Phone B • Cisco Unified Communications Manager performs call setup using a Signaling Protocol (SCCP/SIP). • Media exchange occurs directly between endpoints using RTP.

  3. Gateway Hardware Platforms (Cont.) • Special voice gateways: Cisco VG224 and VG248 Gateways Cisco AS5850 Gateway Cisco AS5300 and AS5400 Series Gateways Cisco 827-4V Router EOS: 05/2005EOL: 05/2010 Cisco 7200 Series Routers Cisco ATA 186

  4. Cisco 2800 Series Routers Cisco 3800 Series Routers Cisco Catalyst 6500 Series Gateway Hardware Platforms • Modern enterprise models:

  5. Cisco Catalyst Family of Switches Cisco Catalyst 6500 Cisco Catalyst 4500 Cisco Catalyst 3750 Cisco EtherSwitch Network Module Cisco Catalyst 3560

  6. Three Ways to Power Cisco IP Phones AC Source Power Power Injector No Power Power 110 V AC Wall Power to 48 V DC Converter • Power over Ethernet (PoE): • Needs PoE line cards or PoE ports for Cisco Catalyst switches • Delivers 48V DC over data pairs (pins 1, 2, 3, and 6) or spare pairs (pins 4, 5, 7, 8) • Midspan power injection: • Needs external power source equipment • Delivers 48V DC over spare pairs • Wall power: • Needs DC converter to connect a Cisco IP phone to a wall outlet

  7. Two Types of PoE Delivery Cisco original implementation: • Provides -48V DC at up to 6.3 to 7.7 W per port over data pins 1, 2, 3, and 6. • Supports most Cisco devices (Cisco IP phones and wireless access points). • Uses a Cisco proprietary method of determining if an attached device requires power. Power is delivered only to devices that require power. IEEE 802.3af Power over Ethernet: • Specifies 48V DC at up to 15.4W per port over data pins 1, 2, 3, and 6 or spare pins 4, 5, 7, and 8. • Enables a new range of Ethernet-powered devices because of increased power. • Standardizes the method of determining if an attached device requires power. Power is delivered only to devices that require power. • Has several optional elements, including power classification.

  8. Cisco Prestandard Device Detection Cisco Prestandard ImplementationPowered Device Port Switch Pin3 FLP Rx Pin6 FLP Pin1 It is an inline device. Tx Pin2

  9. IEEE 802.3af Device Detection IEEE 802.3af Powered Device IEEE 802.3af PSE Switch 2.8V to 10V Pin3 Rx Pin6 Detect Voltage 25K Ohm Resistor Pin1 It is an IEEE powered device. Tx Pin2

  10. Redundancy Design Primary Secondary or Backup 7500 IP phones 30,000 IP phones 15,000 IP phones Cisco MCS 7845 Cisco MCS 7845 Cisco MCS 7845 Publisher and TFTP Server (Not Req. <1000) Publisher and TFTP Server Publisher and TFTP Server 1 to 7500 1 to 7500 Backups Backups Primary 1 to 7500 Backup 7501 to 15,000 7501 to 15,000 15001 to 22,500 Backups 22,501 to 30,000

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