Unified Communication Infrastructure UCI Cisco Unified Communications Manager

Unified Communication Infrastructure UCI

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

Gateway Hardware Platforms (Cont. ) • Special voice gateways: Cisco VG 224 and VG 248 Gateways Cisco AS 5850 Gateway Cisco AS 5300 and AS 5400 Series Gateways Cisco 827 -4 V Router EOS: 05/2005 EOL: 05/2010 Cisco ATA 186 Cisco 7200 Series Routers

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

Cisco Catalyst Family of Switches Cisco Catalyst 6500 Cisco Catalyst 4500 Cisco Catalyst 3750 Cisco Ether. Switch Network Module Cisco Catalyst 3560

Three Ways to Power Cisco IP Phones – Power over Ethernet (Po. E): – Needs Po. E line cards or Po. E ports for Cisco Catalyst switches – Delivers 48 V 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 48 V DC over spare pairs – Wall power: – Needs DC converter to connect a Cisco IP phone to a wall outlet Power Injector No Power AC Source Power 110 V AC Wall Power to 48 V DC Converter

Two Types of Po. E Delivery Cisco original implementation: – Provides -48 V 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. 3 af Power over Ethernet: – Specifies 48 V DC at up to 15. 4 W 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.

Cisco Prestandard Device Detection Cisco Prestandard Implementation Powered Device Port Pin 3 FLP Switch It is an inline device. Pin 6 Rx FLP Pin 1 Pin 2 Tx

IEEE 802. 3 af Device Detection IEEE 802. 3 af Powered Device IEEE 802. 3 af PSE Switch It is an IEEE powered device. 2. 8 V to 10 V Pin 3 Detect Voltage Pin 6 Rx Pin 1 Pin 2 Tx 25 K Ohm Resistor

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