tag:blogger.com,1999:blog-58373399982965843012011-09-12T15:53:18.843+03:00Network WarriorsVoice, Unified Communications and Network Technologies BlogSergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.comBlogger331100tag:blogger.com,1999:blog-5837339998296584301.post-58832122521825039422011-01-27T17:27:00.001+02:002011-01-27T17:27:44.569+02:00Configuring a Gateway of Last Resort Using IP Commands
Commands ip default-gateway, ip default-network and ip route 0.0.0.0 0.0.0.0 explained:
http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094374.shtml
Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com1tag:blogger.com,1999:blog-5837339998296584301.post-36374044912782544322010-12-15T16:39:00.002+02:002010-12-15T18:03:55.477+02:00NX-OS and IOS ComparisionSergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-23298209206717797882010-12-14T17:07:00.002+02:002010-12-15T16:23:29.425+02:00Cisco UCS servers
Название Размер CPU sockets CPU Память Диски I/O
UCS B200 M2 Половина 2 Intel Xeon 5600 12 DIMM96 GB 2 SFF SAS 1 Mezz
UCS B230 M1 Половина 2 Intel Xeon 7500 32 DIMM256 GB 2 SFF SAS 1 Mezz
UCS B250 M2 Целый 2 Intel Xeon 5600 48 DIMM384 GB 2 SFF SAS 2 Mezz
UCS B440 M1 Целый 4 Intel Xeon 7500 32 DIMM256GB 4 SFFSergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-64832593067718755992010-12-04T22:14:00.000+02:002010-12-04T22:14:28.156+02:00Cisco Expo-2010 UkraineSergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-2597012846776588492010-02-15T15:52:00.032+02:002010-12-15T16:24:18.554+02:00Digit Manipulation
Digit Manipulation Techniques summary table:Digit StrippingPOTS dial peers by default remove, or strip, any outbound digits that explicitly match their destination pattern.To disable digit stripping use command: no digit-stripForward DigitsYou can specify the exact number of digits to be forwarded. If the number of digits presented exceeds the number allowed, the rightmost digits are Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-14965882101515355932010-02-12T12:36:00.001+02:002010-12-14T17:12:46.958+02:00Cisco Unified MobilityConsists:
- Mobile Connect: Allows an incoming call to a user's enterprise phone number to be offered to the user's office phone, as well as to up to ten configurable remote destinations. Typically such remote destinations are mobile phones and home office phones.
- Mobile Voice Access (MVA): similar to those of Mobile Connect for outgoing calls. Users who are outside the enterprise can make Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-2257745753676805332010-02-11T17:06:00.005+02:002010-12-15T16:23:01.967+02:00Dial-peers Configuration
Dial-peer wildcard symbols:
Examples of how these wildcard symbols are applied to the destination pattern and the dial string that results when dial string 4085551234 is matched to an outbound POTS dial peer.
Matching Inbound Dial Peers
The router uses the full digit string received in the setup request for matching against the configured dial peers. The router or gateway matches call setupSergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-42063890406629695692010-01-29T12:15:00.003+02:002010-12-15T16:20:52.160+02:00Device MobilityWhen phones move between different CUCM sites, inaccurate phone settings may occur.
The phone configuration parameters that can be dynamically applied to the device configuration are grouped in two categories:
- Roaming-Sensitive Settings
Date/Time Group (dp)
Region (dp)
Location (dp)
Connection Monitor Duration (dp)
Network Locale (dp, phone)
SRST Reference (dp, phone)
Media Resource Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-2487490995056215442010-01-27T16:25:00.001+02:002010-12-15T16:20:04.789+02:00Call Admission ControlCAC limits the number of calls between certain parts of the network to avoid bandwidth oversubscription, with too many voice calls over WAN links.
Locations:
The configured bandwidth limit is independent of the call's destination location. Unlike region configuration, in which the maximum permitted codec is configured for each pair of regions, the bandwidth limit of a location applies to all Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com1tag:blogger.com,1999:blog-5837339998296584301.post-66838787379749098822010-01-25T18:24:00.001+02:002010-12-15T16:25:57.955+02:00Multicast MOH from Branch Router Flash ConfigurationAll IP Phones must be able to access the main-site CUCM MOH server from their media resource group list.
Use Multicast for MOH Audio check box has to be checked at the media resource group that includes the multicast-enabled MOH server.
G.711 codec is used between the MOH server and the branch phones, because SRST multicast MOH supports only G.711.
Recommended practice dictates that you incrementSergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-72926136141601451222010-01-25T16:49:00.001+02:002010-12-14T17:13:05.298+02:00Transcoding Configuration1. Add a Transcoder Resource in CUCM
- Cisco IOS Enhanced Media Termination Point for the Cisco NM-HDV2, NM-HD-1V/2V/2VE, 2800 series, and 3800 series routers;
- Cisco IOS Media Termination Point in the Cisco NM-HDV and 1700 series routers;
- Cisco Media Termination Point Hardware for Cisco Catalyst WS-X6608-T1 and WS-X6608-E1;
- Cisco Media Termination Point WS-SVC-CMM.
2. Configure the Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-62718999707271584312010-01-13T16:36:00.007+02:002010-12-14T17:13:36.615+02:00SRST and MGCP Fallback ConfigurationAvailability Options:
- PSTN backup: Use the PSTN as a backup for on-net intersite calls.
- MGCP fallback: Configure an MGCP gateway to fall back, and use the locally configured (POTS), H.323 or (SIP) dial peers when the connection to its call agent is lost.
- SRST: Cisco IP Phones using either SIP or SCCP must register to a call-processing device for the phones to work.
- Call Forward Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-16232394540026675402009-12-08T11:29:00.003+02:002010-12-15T16:24:26.601+02:00MS OCS and Avaya PBX interconnection with Cisco ISR
Configuration:
!
network-clock-participate wic 0
network-clock-select 1 E1 0/0/0
!
isdn switch-type primary-qsig
!
voice-card 0
no dspfarm
!
voice rtp send-recv
!
voice service voip
sip
bind control source-interface FastEthernet0/0
bind media source-interface FastEthernet0/0
session transport tcp
!
voice class codec 1
codec preference 1 g711ulaw
codec preference 2 g711alaw
!
controller E1 0/0/0
Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-66109805396868192492009-12-08T10:44:00.006+02:002010-12-15T16:22:52.802+02:00CallManager Express ConfigurationCoping files to router:
Router(config)# archive tar /xtract tftp://192.168.1.1/cme-full-4.3.0.0.tar flash:
TFTP server activation on router:
Router(config)# tftp-server flash:/P00308000500.bin alias P00308000500.bin
Config example:
!
telephony-service
max-ephones 5
max-dn 5
ip source-address 192.168.1.1 port 2000
auto assign 1 to 5
system message Cisco
load ata ATA030203SCCP051201A.zup
Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com1tag:blogger.com,1999:blog-5837339998296584301.post-88769104590603890222009-07-01T14:24:00.004+03:002010-12-15T16:24:33.851+02:00SIP ConfigurationSip Basic Call Flow:Configuration:
Router(config)#voice service voip
Router(conf-voi-serv)#sip
Router(conf-serv-sip)#session transport {udp|tcp}
Router(conf-serv-sip)#bind control source-interface Loopback 0
Router(conf-serv-sip)#bind media source-interface Loopback 0
Router(conf-serv-sip)#exit
Router(conf-voi-serv)#no shutdown
Router(config)#sip-ua
Router(config-sip-ua)#authentication usernameSergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-27731607691878430442009-07-01T12:37:00.012+03:002010-12-15T16:24:44.142+02:00MGCP ConfigurationMGCP Basic Call Flow:Comands:
AUEP - Audit Endpoint (status of endpoint)
AUCX - Audit Connection (status)
CRCX - Create Connection (by CA)
DLCX - Delete Connection (be CA,GW)
MDCX - Modify Connection (by CA)
RQNT - Notification Reuest (by CA)
NTFY - Notification about Event (by GW)
RSIP - Restart in progress (by GW)
Configuration:
Automatic configuration:
! Call agent - ccm
Router(config)#Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-33203576734372070922009-07-01T11:47:00.009+03:002010-12-15T16:24:51.100+02:00H.323 ConfigurationH.323 Elements:
- H.245 - codecs and features negotiation
- H.225 - call setup
- H.225 RAS - gatekeeper (Registration, Admition, Status)
H.323 Basic Call Flow:
Configuration:
! Enable h323 VOIP servises
Router(config)#voice service voip
Router(conf-voi-serv)#h323
! specifies the time to maintain an established H.225 TCP connection when there are no calls on that connection
Router(conf-serv-h323Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-56858414486019082992009-06-25T16:04:00.007+03:002010-12-15T16:22:48.302+02:00Digital Voice Ports ConfigurationQSIG:
card type e1 0 0
!
network-clock-participate wic 0
network-clock-select 1 E1 0/0/0
!
isdn switch-type primary-qsig
!
controller E1 0/0/0
framing CRC4
pri-group timeslots 1-31
clock source line
linecode hdb3
!
interface Serial0/0/0:15
no ip address
isdn switch-type primary-qsig
! incoming calls to DSP
isdn incoming-voice voice
! for countries with variabe length numbering plan
isdnSergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-84087413077897982072009-06-22T12:34:00.012+03:002010-12-15T16:19:40.470+02:00Analog Voice Ports ConfigurationFXS ports:
Router(config)# voice-port slot/port
!port signaling
Router(config-voiceport)# signal {loopstart | groundstart}
Router(config-voiceport)# no shutdown
Router(config-voiceport)# description
!call progress tones
Router(config-voiceport)# cptone locale
!ring interval
Router(config-voiceport)# ring cadence {pattern-number | define pulse interval}
!frequency on the ring
Router(Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-52059108548059464642009-06-19T09:09:00.007+03:002010-12-15T16:22:41.218+02:00DSP1 DSP C5510 = PVDM2-16
DSP functions:
- Transcoding
- Voice Termination
- MTP
- Conferencing
Codec Compleity:
- Medium: G.728, G.723, G.729, G.729B, fax relay
C549: 4, C5510: 8 voice/fax relay calls per DSP.
- High: G.711, G.726, G.729A, G.729AB, fax relay
C549: 2, C5510: 6 voice/fax relay calls per DSP.
- Flex: optimal mode.
- Secure: support of secure RTP.
Router(config)# voice-card 1
Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-42024035634373206712009-06-18T11:34:00.005+03:002009-06-18T11:45:29.225+03:00Quick links to useful resources and tools on Cisco.com Update 1:Partners Education ConnectionPartners HelplinePartners PDI UCCisco Unified Communications System 7 Ordering Guides Steps to SuccessSergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-8104489986091836832009-06-17T17:14:00.005+03:002010-12-15T16:22:07.442+02:00ITU G-series codecs
CodecBandwidth (bps)Sample Size (Bytes)
Packets
Ethernet (bps)
MOS
G.71164,0002403379,4674.1
G.71164,0001605087,2004.1
G.726r3232,0001203347,4673.85
G.726r3232,000805055,2003.85
G.726r2424,000802541,400
G.726r2424,000603347,200
G.726r1616,000802527,600
G.726r1616,000405039,200
G.72816,000801327,6003.61
G.72816,000402539,2003.61
G.7298000402519,6003.92
G.7298000205031,2003.92
GSergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-3027156643621309892009-06-11T11:47:00.013+03:002010-12-15T16:21:06.100+02:00VoIP Acceptable Delay RecommendationsITU-T network one-way delay for voice applications Recommendation G.114:
Range in MillisecondsDescription
0 to 150Acceptable for most user applications.
150 to 400Acceptable, provided administrators are aware of the transmission time and its impact on the transmission quality of user applications.
Above 400Unacceptable for general network planning purposes. (However, it is recognized that in Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-26579528565164247972009-06-10T15:59:00.005+03:002010-12-15T16:20:58.692+02:00Creating ISO Image for upgrade patchesCOPY /B UCSInstall_UCOS_7.1.2.10000-16.sgn.iso_part1of2+UCSInstall_UCOS_7.1.2.10000-16.sgn.iso_part2of2 UCSInstall_UCOS_7.1.2.10000-16.sgn.isoSergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-82412777595300810932009-05-22T14:03:00.004+03:002010-12-15T16:24:57.786+02:00Basic ISR Configurationno service pad
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
service password-encryption
service sequence-numbers
ip subnet-zero
no ip source-route
no ip gratuitous-arps
no ip bootp server
no ip domain-lookup
no service udp-small-servers
no service tcp-small-servers
Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-90712266042014200852009-05-21T17:52:00.005+03:002010-12-15T16:25:39.317+02:00Cisco IP phone boot process:1. The Cisco IP phone connects to an Ethernet switchport. If the IP phone and switch support PoE, the IP phone receives power through either Cisco-proprietary PoE or 802.3af PoE.
2. As the Cisco IP phone powers on, the Cisco switch delivers voice VLAN information to the IP phone using CDP as a delivery mechanism. The Cisco IP phone now knows what VLAN it should use.
3. The Cisco IP phone sends Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-55131563759144547702009-05-21T16:48:00.012+03:002010-12-15T16:25:47.632+02:00Power Over EthernetCisco Inline Power
Cisco Inline Power is often called Cisco prestandard PoE. The major difference between the PoE methods lies primarily in the device detection process. Cisco prestandard PoE uses the following method:
1. The Cisco prestandard PoE device physically connects to the switch.
2. The switch sends an Fast Link Pulse (FLP) tone signal to the device. Only an unpowered. Cisco Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-71944742661004073952009-05-12T20:31:00.013+03:002010-12-15T16:19:22.034+02:00Subscriber SignalingSupervisory signaling:
- On-hook. Connection between tip and ring is broken.
- Off-hook. The phone connects the wires.
Ringing: Alternating current (AC) on wires makes phone to ring.
Informational signaling:
- Dial tone
- Busy
- Ringback
- Congestion
- Reorder
- Receiver off-hook
- No such number
- Confirmation
Address Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-9986270735797178312009-04-25T13:01:00.017+03:002010-12-15T16:25:32.898+02:00Cisco IP Phones 794x series- 7940G: 2 buttons, full-duplex speakerphone, headset support
- 7941G: better resolution and backlit display
- 7941G-GE: integrated 10/100/1000 Ethernet switch
- 7942G: high-fidelity audio and the emerging Internet Low Bitrate Codec (iLBC)
- 7945G: 16-bit color display with 320x240 resolution
Cisco 796X series IP phones mirrors features of the 794X series, but supports six buttons
Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-35772613029718067552009-04-24T13:11:00.009+03:002010-12-15T16:20:21.955+02:00Device License Units (DLU)
Device TypeCost in DLUs
Cisco VGC Phone (Voice Gateway Controlled, e.g. behind VG248)
Cisco VGC Virtual Phone (Voice Gateway Controlled, e.g. behind VG248)
Analog Phone
CTI Port0
Cisco Unified IP Phone 7902
Cisco Unified Mobile Communicator
Cisco Unified Presence user1
Cisco Unified IP Phone 7905, 7906G, 7910, _12_S, 12 SP, 12 SP Plus, 30 SP Plus
ATA 186, 3911
Cisco Unified Mobility Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-2227083450720815992009-04-23T14:20:00.003+03:002009-05-22T10:46:59.364+03:00Online Network ToolsGolden Telecom Network Looking GlassLevel 3 Network Looking GlassOnline network utilitiesSpeedTest - The Global Broadband Speed TestTroubleshooting Microsoft Windows Event LogsDefault PasswordsSergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-25814500102622394772009-04-21T21:54:00.044+03:002010-12-15T16:21:26.849+02:00Unified Communications Manager Express Platform Limitations
PlatformMaximum Number of Phones
Cisco 1861 ISR8
Cisco IAD2430 Access Device24
Cisco 2801 ISR25
Cisco 325010
Cisco 327050
Cisco 2811 ISR35
Cisco 2821 ISR50
Cisco 2851 ISR100
Cisco 3725144
Cisco 3745192
Cisco 3825 ISR175
Cisco 3845 ISR250
Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0tag:blogger.com,1999:blog-5837339998296584301.post-76131750735484581852009-04-20T21:04:00.021+03:002009-05-22T10:45:15.904+03:00Quick links to useful resources and tools on Cisco.com :General links :Support Tools & ResourcesCisco Product Quick Reference GuideCisco NetPro ForumDynamic Configuration ToolPricing ToolCisco Community CentralVoice links:Cisco IOS Voice Configuration LibraryVoice Debug LookupVoice GlossaryDSP CalculatorVoice Codec Bandwidth CalculatorCisco Power CalculatorCisco Unified Communications System Release 7 Technical ReadinessCUCM Capacity ToolSolution Sergii Trotsenkohttp://www.blogger.com/profile/06317829352542118855noreply@blogger.com0