IIUC Notes – VoIP Structures
Feel free to correct. No need to sugar-coat it; I’m pretty new at this stuff. 🙂
- Advantages of VoIP
- Reduces costs of communications: Eliminates/reduces long distance and international call tolls
- Reduces costs of cabling: No need for second network of phone lines
- Integrates all voice into one large network: All your remote offices can be implemented/maintained/controlled centrally
- Provides mobility: Moves, adds, and changes (MACs) are (nearly) eliminated since your phone is just a network node
- Allows use of IP Softphones
- Unifies emails, voice mails, and faxes: All these can be treated as a single box for user messages
- Increases productivity: Ringing multiple devices at the same time eliminates phone tag. <— pushing it, eh?
- Enhances communications: Applications can be launched/updated from a voice call through application servers
- Provides open, compatible standards: You can connect different vendor devices into the same VoIP network. <— I’ve never seen that happen
- Cisco VoIP Structure
- Infrastructure: Switches, routers, firewalls, etc.
- QoS!
- Call processing: Call signaling, routing, etc.
- Applications: Additional functionality like IM support and unified messaging
- Endpoints: Phones
- Infrastructure: Switches, routers, firewalls, etc.
- Cisco Call Processing
- Unified Communications 500 (UC500): Standalone device with switch, router, firewall, voice processing, voice mail all built in
- Communications Manager Express (CME): Voice capabilities contained in ISR router
- Communications Manager Business Edition: Server solution with most voice capabilities integrated
- Communications Manager (CM): Full server-cluster solution to support many thousands of phones
- Cisco Applications
- Interactive Voice Response (IVR): Those troublesome menus where you say your account number but it never understands you
- Auto attendant: Interactive interface where users direct themselves to the correct person/group/team/department by using touch tones.
- Cisco Unified Contact Center: Provides IVR, auto attendant, automatic call distribution (ACD), computer telephony integration (CTI), chat/web/email integration
- Cisco Unity Express: Linux-based appliance in a router for limited voice mail, IVR, and auto attendant
- Cisco Unity Connection: Server-based solution for more robust VM, IVR, and auto attendant
- Cisco Unity: Fully-integrated solution running on server clusters
- Phones
- Entry-level
- 3911
- Inline power
- Fixed buttons
- Half-duplex speakerphone
- 7906G/7911G
- Inline power
- Onscreen soft keys
- Basic XML support
- 7911G has built-in switch
- 7931G
- Inline power
- Onscreen soft keys
- Basic XML support
- Built-in switch
- 3911
- Business-class
- 7940G
- Built-in switch
- Inline power
- Broader XML support
- Onscreen soft keys
- Full-duplex speaker
- Headset support
- 7941G = 7940G + better display with backlight
- 7941G-GE = 7941G + 10/100/1000 switch
- 7942G = 7941G + high-fidelity audio and Internet Low Bitrate Codec (ILBC)]
- 7945G = 7941G-GE + 16-bit color display
- 794X phones support 2 lines; the same 796X phones support 6 lines.
- 7940G
- Touchscreen phones
- 7970G: 7940G + touchscreen
- 7971G-GE: 7941G-GE + touchscreen
- 7975G: 7945G + touchscreen + 5″ display
- Specialty phones
- 7985G: Video phone
- 7921G: Wireless VoIP phone
- 7937G: Conference station
- ATA 186/188: Converts analog phones to VoIP
- Cisco IP Communicator: Softphone
- VT Advantage: Integrates webcam and computer with phone
- 7914/7915/7916: Expansion modules for 796X and 797X phones
- Entry-level
Aaron does lots of stuff and, therefore, does nothing well. He's trying, though.
https://masto.ai/@aconaway
https://masto.ai/@aconaway
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