Archives : Tech Blog

  • Cisco Voice – CUPS

    —Presence Server (CUPS) Cisco Unified presence server (CUPS) provices IM, status information, ties into exchange allows phones to be controlled by the PC. //Enabling a user for Presence 1. System -> licensing -> Capability assignement For each user enable CUP + CUPC 2. Assign a device -> Phone + line to the user. end user […]

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  • Cisco Voice – CUCM

    —–CUCM CUCM is a standalone appliance that runs on UNIX. you navigate to a web GUI By default there are no services runing. you will need to activate the service under Cisco unified serviceability tools -> service Activation -> Enable. There is a command line available if you SSH into the device for emergency disaster […]

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  • Cisco Voice – Class of Restriction (COR)

    —-COR (class of restriction) Call manager Express COR is about setting up “accesslists” for phones. The COR list is applied inbound and outbound on the router. The way it works is that the COR is applied to the dialpeer on the phone as it is incomming and the COR is applied outbound on the dial […]

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  • Cisco Voice – Dial-Peers

    —Dial peers Are essentially your rules about next leg of the data. Phone1 —> R1 ——> R2 —–> Phone2 Here you can see there are 4 legs. dial peers are processed both incoming and outgoing. There are 2 types of Dial peers POTS dial peers = used for a port connecting to a to a […]

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  • Cisco Voice – QOS

    —QOS Making sure packets sent in correct order. Does not address bandwidth shortages, if there is not enough speed on the link for all your traffic, only says which traffic to send first. QOS can be programmed under the dial peer. Used to fix Packet loss – Router buffer gets full and then drops packets […]

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  • Cisco Voice – CME Configuration

    —DHCP for VOIP Done for each VLAN/subnet show ip dhcp binding //see ips being issued 1. Exclude your static IP’s ip dhcp exclude-address <begining IP> <end ip> 2. Create your scope for each vlan ip dhcp pool <NAME> network <IP> <Subnet> dns-server <DNS IP> option 150 <TFTP Server> //some brands use option 66 3. IP-helper […]

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  • Cisco Voice – Theory Concepts

    debug voip dialpeer // see numbers being dialed, and calls being placed show voice call summary//see active calls show dialpeer voice summary // see a list of extensions next hops IE Go to this router to get this ext. debug ephone detail // see ephone as it registers —Phase 1 upgrade. New router is purchased […]

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  • Cisco Wireless – Practical

    —WCS (Wireless Control System) The WCS is a controller management system, that allows you to push out config to your multiple controllers, you can use templates to push standard config to your controllers, you can also monitor clients and location devices. SNMP is used to monitor and manage controllers add a controller -> Configure -> […]

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  • Cisco Wireless – Concepts

    –Fresnel Zone Think about football shaped zone from piont A to piont B Then Think about a larger football shaped zone from A to piont B Then Think about a larger football shaped zone from A to piont B The first one is zone 1, the next is zone 2 and then zone 3 you […]

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  • Cisco – Smart Net Licensing – 9300

    ip name-server <DNS>ip name-server <DNS>ip domain-lookupip domain-name lookup conf tcall-homehttp-proxy <ProxyIP> port 8080source-interface Vlan342 Go to SMART Licensinghttps://software.cisco.com/software/csws/ws/platform/home#SmartLicensing-Inventory Enter the Token ID on the SwitchANDip http client source-interface VlanXXX

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