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Latest Articles
Scheduling an action on User switching
September 19, 2019
The system logon/out, startup/shutdown script are already built in by Microsoft, and you can give them privilege via group policy setting. Today I will introduce a solution to schedule an action upon user switching, which is not an login/out action. This scenario is typically useful for a proxy session monitoring, which usually require system to...
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Integrate CME with CUE/CUC configuration example
September 17, 2019
Topology CME: 172.22.1.107/24 CUE: 172.22.1.155/24 Voicemail number: 2000 MWI on: 8000 MWI off: 8001 Reception number: 1001 CME configuration CME is sitting in 172.22.1.0/24 network, with ip 172.22.1.107. Router(config)#telephony-service Enter the command max-ephones max-num-phones in order to set the maximum number of IP phones to be supported by this platform. Router(config-telephony)#max-ephones 144 Enter the command max-dn max-directory-numbers in order to set the...
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SIP trunk registration
September 17, 2019
Sip registration proxy End-to-End Mode In the end-to-end mode, Cisco UBE collects the registrar details from the Uniform Resource Identifier (URI) and passes the registration messages to the registrar. The registration information contains the expiry time for rate-limiting, the challenge information from the registrar, and the challenge response from the user. Cisco UBE also...
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Call forwarding and Call transfer
September 13, 2019
In a VoIP network, getting an optimized system working for call transfer and forwarding requires the active cooperation of all endpoints involved in a call transfer or call forward. This means your ability to perform a call transfer or forward depends on the capabilities of the calling party’s VoIP system as well as your Cisco...
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Configure CUBE with ITSP ( SIP trunk)
September 7, 2019
The router has private (Gi0/0) and public (Gi0/1) interfaces Outbound calls are prefixed with a 9 SIP-UA.com DIDS are 2145556040 – 2145556069 SIP-UA.com Username is 100001 and password is 1357924680 Contents [hide] 1 DNS Settings 2 Global Voice Parameters 3 SIP-UA.com Registration & Authorization Settings 4 Translation Profiles 5 Outbound SIP-UA.com Dial-Peer 6 Inbound SIP-UA.com...
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Upgrade IOS for Cisco system
September 5, 2019
I will use c2960s switch as an example: Step 1: Make sure the IOS is on the Cisco USB Drive (TFTP) For this, I am using a Lexar 4Gb drive with FAT format (fat16). Or else you will get message “%Error opening usbflash0:c2960s-universalk9-mz.152-2a.E1.bin (Invalid DOS media or no media in slot)” Or you can copy it...
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test-Gloria
September 4, 2019
...
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SIP trunk
September 1, 2019
SIP trunks can mean many things, but generally a few important components make up any system that includes SIP trunks. We will have a look from both Service Provide (SP) and enterprise perspective. Prepare Options for handling emergency calling include ■ Continuing to route emergency calls through your TDM PSTN gateways ■ Having a...
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SIP trunk with Cisco – Example
August 29, 2019
Introduction Today, the small and medium businesses are realizing that the use of IP is very efficient because IP can use Voice, Video, and Data capabilities over a single network, instead of using three separate special-purpose networks. Figure 1 shows an IP telephony deployment trending towards IP trunking. Figure 1 – IP Telephony System IP...
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Configure CoS for VoIP
August 28, 2019
Step1. Configure the QoS on the End device 1. Configure the Access-list to identify the type of traffic CME2(config)#access-list 100 permit udp 192.168.255.0 0.0.0.255 range 8766 35000 any range 8766 35000 2. Create a class-map and associate the access-group with it. CME2(config)#class-map RTP_SUBNET_192_168_255 CME2(config-cmap)#match access-group 100 CME2(config-cmap)#exit 3. Create a policy map...
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Cisco unified border element (CUBE) gateway
August 27, 2019
A Cisco Unified Border Element (Cisco UBE) has the capability to interconnect voice and VoIP networks, offering protocol interworking, address hiding, and security services. This topic gives an overview of Cisco UBE functionality and describes how to implement a Cisco UBE within an enterprise voice network. The Cisco UBE is similar to a traditional voice...
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Administrating CUC (Cisco unity connection)
August 26, 2019
Managing Users in Cisco Unity Connection There are four ways to add users to Cisco Unity Connection. Users can be added manually, by synching to a CUCM, by using LDAP, and finally by using the Bulk Administration Tool (BAT). Adding Users Manually Adding users manually is typically used after the system is up and running...
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Cisco Unity Connection
August 26, 2019
Reference Integration of CUCM with CUC...
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VOIP- HuntGroup Night service
August 24, 2019
Hunt group To redirect calls for a specific number (pilot number) to a defined group of directory numbers on Cisco Unified SCCP and SIP IP phones, perform the following steps. SUMMARY STEPS 1. enable 2. configure terminal 3. voicehunt-group hunt-tag [longest-idle |parallel | peer | sequential] 4. pilot number [secondary number] 5. list...
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VOIP dial Plans ( Path Selection, Call privileges)
August 23, 2019
Path selection is one of the most important aspects of a well-designed VoIP system. High availability is desirable, so there is usually more than one path for a call to take to its final destination. Multiple paths provide several benefits, including redundancy in case of a link failure or insufficient resources on that link and a...
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VOIP dial plan (Numbering Plan, Call routing, DIGIT MANIPULATION)
August 22, 2019
To integrate VoIP networks into existing voice networks, you should have the skills and knowledge to implement call routing and design an appropriate numbering plan. A numbering plan is a numbering scheme used in telecommunications to allocate telephone number ranges to countries, regions, areas, and exchanges, and to nonfixed telephone networks such as mobile phone...
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Voice lab
August 21, 2019
CUCME GUI on GNS3 The best lab image will be c7200-adventerprisek9-mz.124-20.T, with CUBE features enabled, and is compatible with CME7. 1. Connect the GNS3 to real PC via a loopback interface or VM via VMware network, or hyper-V switch. 2. Setup the TFTP server from that physical computer or a VM. 3. Download the CME...
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CREATING CAPTURE TASK SEQUENCE ON MDT 2013
August 20, 2019
The first step is to create a new Task Sequence, which will control the image capturing process. Create a share on MDT with share name: MDT machine name MDT01 Service user named mdt_ba Deployment share: MDTbuild$, and give it write permission to shared folder MDTbuild$ . Run Deployment Workbench console and expand branch Deployment Shares ->...
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Sip ALG
August 20, 2019
Even though SIP ALG is intended to assist users who have phones on private IP addresses (Class C 192.168.X.X), in many cases it is implemented poorly and actually causes more problems than it solves. SIP ALG modifies SIP packets in unexpected ways, corrupting them and making them unreadable. This can give you unexpected behaviour, such...
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Mac Profile manager
August 20, 2019
Issue: Push (profile, APP) function does not work: Solution: Check if the server cert is expired, try renewing your Apple Push Notification Certificate: – Go to the Server.app – Server Name at top left – Settings / Notifications – Edit Apple ID – Renew Logout script ( for Proxy software, I...
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Install CME on GNS3
August 19, 2019
Setup CME Extract it: archive tar /xtract tftp://x.x.x.x/cme-full-4.1.0.2.tar disk0: Enable the http: R1(config)#ip http server R1(config)#ip http path disk0:/cme-full-4.1.0.2/gui R1(config)#telephony-service R1(config-telephony)#web admin system name gawad password cisco R1(config-telephony)#dn-webedit R1(config-telephony)#time-webedit R1(config-telephony)# moh disk0:/cme-full-4.1.0.2/music-on-hold.au Access it http://ip_address/ccme.html Problem: 1. disk0 is formatted from a different router you may get a disk not flash, before...
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VoIP basic
August 18, 2019
Major Stages of Voice Processing in VoIP For voice transmission over an IP network, the voice wavelength must be sampled, quantized, encoded, optionally compressed, and then encapsulated in a VoIP packet. Terminology Gatekeeper: Cisco gatekeepers are used to group gateways into logical zones and perform call routing between them. Gateways are...
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Cisco Unified Border Element(CUBE) Cisco UC560 setup
August 16, 2019
The CUBE provides a network-to-network interface point for: Signaling interworking—H.323 and SIP. Media interworking—dual-tone multifrequency (DTMF), fax, modem, and codec transcoding. Address and port translations—privacy and topology hiding. Billing and call detail record (CDR) normalization. Quality-of-service (QoS) and bandwidth management—QoS marking using differentiated services code point (DSCP) or type of service (ToS), bandwidth enforcement using...
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Building hybrid AD with Password Hash Sync
August 15, 2019
Choose the solution suits you There are two solution for the Hybrid AD: Password Hash Sync or Pass-through Authentication. See the explaination, go here: https://docs.microsoft.com/en-us/azure/security/fundamentals/choose-ad-authn i will use Password Hash Sync in my example as it is the simplest way to enable authentication for on-premises directory object in Azure AD. Prerequisite: setup on premises AD https://docs.microsoft.com/en-us/azure/active-directory/hybrid/how-to-connect-install-prerequisites...
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The quieter you become, the more you can hear !
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