Category: CCNA Voice

CCNA Voice Passed

So I finally finished up my CCNA voice. In hind site I could of had this done months ago. I will say I was disappointed only one simulation and a lot of arbitrary questions.

Permanent link to this article: https://tripplehelix.net/ccna-voice-passed/

CCNA Voice Study – Installing CUCME PART 1

CUCME is comprised of multiple files and file types compared to a single unified Bin file like IOS. CUCME is comprised of the following: Basic Files, GUI Files, XME Temple File, Music on Hold (MOH) Files, Script Files, and Miscellaneous Files. To install CUCME you must first have a matching IOS version to support it …

Continue reading

Permanent link to this article: https://tripplehelix.net/ccna-voice-study-installing-cucme-part-1/

CCNA Voice Study – Integration Models

PBX– Traditional model, phones all have a unique DN perhaps DIDs. Calls come into a receptionist for direction and users must use an access digit of sorts like 9. Keyswitch – Model in which all phones have a common lines on all of them. All users can see when a line is in use and …

Continue reading

Permanent link to this article: https://tripplehelix.net/ccna-voice-study-integration-models/

CCNA Voice Study – Licensing Requirements

IOS License – Straight forward the license for the version of IOS you will be running on the ISR. Feature License – Is the number of phones that the CUCME will be able to support. Think of it as attached to the ISR verses the phone. Phone User License – Is the actually license for …

Continue reading

Permanent link to this article: https://tripplehelix.net/ccna-voice-study-licensing-requirements/

CCNA Voice Study – CUCME Platform Limits

Platform Number of Phones 1861 8 IAD2430 24 2801 24 3250 10 3270 50 2811 35 2821 50 2851 100 3725 144 3745 192 3825 175 3845 250

Permanent link to this article: https://tripplehelix.net/ccna-voice-study-cucme-platform-limits/

CCNA Voice Study – Unified Messaging Platforms

Product Number of Users Redundancy Support E-mail Support Server or Router Based Unity Express Up to 250 No Relay voice-mail to outside e-mail server Router Unity Connection Up to 7,500 No Relay voice-mail to outside e-mail server Server Unity Up to 7,500 per server. Expandable to 250,000 with multiple servers. Yes Integrates directly with MS …

Continue reading

Permanent link to this article: https://tripplehelix.net/ccna-voice-study-unified-messaging-platforms/

CCNA Voice Study – Call Processing Platforms

Product Number of Users Redundancy Support Server or Router Bassed UC500 8 to 48 No Router CUCME Up to 250 depending on router No Router CUCMBE Up to 500 No Server CUCM 30,000 per cluster Yes Server

Permanent link to this article: https://tripplehelix.net/ccna-voice-study-call-processing-platforms/

CCNA Voice Study – Cisco VoIP Structure

Much like the OSI model Cisco has a standardized reference model to explain the various components that make up a unified communications system. From top down: Endpoints – IP Phones, Cell Phones, Video Phone, IM Client aka what the user touches. Applications – Voice Mail, Conference Call Apps, Call Center Apps, 911 Services aka feature …

Continue reading

Permanent link to this article: https://tripplehelix.net/ccna-voice-study-cisco-voip-structure/

CCNA Voice Study – PoE

Cisco pre-standard PoE verses 802.3af PoE Cisco pre-standard PoE Process1. Device connected to switch. 2. Switch sends a Fast Link Pulse (FLP) tone to the device. Only unpowered Cisco pre-standard PoE device will loop the FLP back to the switch. 3. Switch receives pulse back and applies a minimal amount of power (6.3W) to the …

Continue reading

Permanent link to this article: https://tripplehelix.net/ccna-voice-study-poe/

CCNA Voice Study – IP Phone Boot Process

Phone connected to Ethernet switch port. Receives power either via 802.3af or Cisco-Proprietary POE. Cisco switch delivers voice VLAN information to the phone via CDP. Phone now in voice VLAN initiates DHCP request. Switch relays this to DHCP server via ip-helper command. DHCP server offers phone IP address including DHCP option 150, better known as …

Continue reading

Permanent link to this article: https://tripplehelix.net/ccna-voice-study-ip-phone-boot-process/