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  1. Senior Member pogue's Avatar
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    #1

    Default Help completing my Voice Lab..

    I just purchased a Cisco 2811 Router 768 DRAM / 256 flash IOS 15.1 Adv CME v8.. Coming in the mail now...

    Additionally, I have a 1721 router with a WIC 1T module (and one additional empty slot...). I have in addition, a WIC 1DSU 56K card, and a WIC 2A/S in a second 1721...

    I have a 2 3550 PoE switches and 1 2950XL switch

    I have one 7940 series phone....

    I am not exactly sure on the purpose of the VWICs, how many I might need, and how many DSPs (FXO/FXS, right?) I might need to fill out the lab. In the Army, I had a month or two of experience with FXO/FXS cards, but only to feed a PSTN line in and get call routing out at the other end of the network... I am REALLY new to Voice..

    I have a quad core home PC with 12Gig RAM..

    I am pretty sure I can use the 2811, 3550, and the phone.. I am not sure what I can use from the rest?


    So, to recap...

    1 2811 Router 768 DRAM / 256 flash IOS 15.1 Adv CME v8
    2 1721 routers
    1 WIC-1T
    1 WIC 2A/S
    1 WIC 1DSU 56K
    2 3550 PoE switches
    1 2950XL switch
    1 7940 series Cisco phone
    3 7960 series Cisco phones - Purchased 3/25/2013
    DB60 DCE/DTE cables
    Quad core 12Gig RAM PC for VMWare
    CISCO PVDM2-32 - Purchased 3/25/2013



    I have a feeling I have a good portion of what I need, but not sure what I can/cannot use as far as the 1721s are concerned?

    Thanks for any clarification you can provide.... Also, I assume that having Vonage for my home phone should not matter either way?


    Russ
    Last edited by pogue; 03-25-2013 at 07:10 PM.
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  3. Senior Member DexterPark's Avatar
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    #2
    Well, first off thank you for your service.

    Secondly, I assume your voice lab is in prep for a cert/job so I would say that as far as a CCNA Voice lab you have enough to get going with. A single site VoIP configuration is just fine for that, big got to haves for a Cisco Voice lab are: CUCM, CME, CUPS, and Unity Connection. You can use the 1721's as MGCP gateways, running CME/SRST and have the switches/phones behind them as remote devices. On the routers/switches configure basic QOS to prioritize Voice traffic, and point the voice vlan tftp option 150 to your main sites CUCM.

    (Side note: some people new to VoIP ask if CUCM has to be in the same subnet as the phones, the answer is no. Just make sure they have a L3 devices to route between vlans.)

    At your main site, you can use your PC to host your UC servers either wipe it and use ESXi 4.1 or just use vmware workstation if you want to keep your current OS. You also mentioned VWICS & FXS/FXO cards, well I wouldn't invest too heavily into analog stuff but if you throw the FXS/FXO cards on either your main site router (think of it as a gateway) you can route calls out of it, and configure the FXS ports with Extensions great to play with them in CME first. The VWICS are cool because they can simulate a PRI connection or can be used as plain old T1 ports that is why I personally prefer the 2 port VWICs to 1 port HWICs. As for DSP chips, in a lab you really don't need to worry about them too much all they are is resources for codec translation (EX: SIP to H.323), or going from Analog to digital. A single 32 DSP chip is fine and you can stick your FXO/S cards directly into the slots of your 2811 ISR router. (Side note on router: You are running 15.1 IOS so be sure to do a show licence to see what features are available, SRST will not work after the trial period, so you may consider downgrading to 12.4)

    Hope this helps!
    Last edited by DexterPark; 03-25-2013 at 10:50 PM.
    My advice to anyone looking to advance their career would be to learn DevOps tools and methodologies. Learn how to write code in languages like Python and JavaScript. Not to be a programmer, but a network automation specialist who can do the job of 10 engineers in 1/3 of the time. Create a GitHub account, download PyCharm, play with Ansible, Chef, or Puppet. Automation isn't the future, it's here today and the landscape is changing dramatically.
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  4. Senior Member pogue's Avatar
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    #3
    Dexter,

    LOL, I sure hope that once I start studying for the CCNA:Voice, that I will understand more of the terms that get thrown around in these threads..



    Russ
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  5. Senior Member DexterPark's Avatar
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    #4
    Quote Originally Posted by pogue View Post
    Dexter,

    LOL, I sure hope that once I start studying for the CCNA:Voice, that I will understand more of the terms that get thrown around in these threads..



    Russ
    Sorry dude!

    CUCM = Cisco Unified Communication Manager (Call Manager)
    CME = Call Manger Express
    CUPS = Cisco Unified Presence Server (Mostly an IM server)
    Unity Connection = Voice mail system
    MGCP = Media Gateway Control Protocol (Allows CallManager to control routes and use them as VoIP gateways)
    SRST= Survivable Remote Site Telephony (if connection to CallManager is lost the router can take over for the phones and use a local analog line or PRI to route outbound)

    Hope that helps!
    My advice to anyone looking to advance their career would be to learn DevOps tools and methodologies. Learn how to write code in languages like Python and JavaScript. Not to be a programmer, but a network automation specialist who can do the job of 10 engineers in 1/3 of the time. Create a GitHub account, download PyCharm, play with Ansible, Chef, or Puppet. Automation isn't the future, it's here today and the landscape is changing dramatically.
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  6. Senior Member pogue's Avatar
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    #5
    Dexter,

    Thanks for the assistance!!

    Update: Ebay seller sent me the 2811 with 256Mb DRAM/64Mb Flash, IOS 12.4(3), and no CME installed. I have been in contact with him and he says he is sending the software, but he has not answered my issue with the memory sizes. I am giving him the benefit of the doubt, and hopefully he will take care of everything without me having to raise a stink.

    Russ
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  7. Senior Member pogue's Avatar
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    #6
    Update... Seller sent me the correct IOS on the correct sized Flash card, with the additional DRAM.. All is installed and working well..

    I do have another question.. Hopefully someone with more knowledge that I will be able to answer..

    I am looking at purchasing a VIC2-4FXO card in order to connect my system to my Vonage connection so I call recieve calls from POTS..

    Now, I looked up the data sheet on the 2800 series, and the following line seems to indicate a Voice module will work fine in an HWIC slot:

    Q. Are the VICs supported in the integrated HWIC slots?
    A. Yes, because the Cisco 2800 Series has PVDM slots on the motherboard, these DSPs are available to support VICs in the integrated HWIC slots.


    So, I am assuming I don't need any sort of NME, right?

    Thanks,

    Russ
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    #7
    The majority of VICx and VWIC cards will work fine in the 2800 series, just add PVDM2's and viola, a working POTS voice gateway! No NME required, though they can still be used.

    I think there are a handful of VIC's that are unsupported (VIC-2FXO?, VIC-2FXS?, VIC-2E&M), mostly the original 1st Generation 2 port VIC's, but any later ones should be fine.
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  9. Senior Member pogue's Avatar
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    #8
    azaghul,

    Thank you very much for the response..

    Another question.. Looking on Ebay, the VIC2-2FXO's seem to be much more expensive than the VIC2-4FXO...

    Do you have any idea why?

    Thanks,

    Russ
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    #9
    Hi Russ

    absoluetly no idea really, availability maybe? price originally paid?...I've seen 3560-24PS selling for more than a 3750-48PS (and from the same seller as well!)...just one of those bizarre quirks of eBay
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  11. Senior Member pogue's Avatar
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    #10
    Quote Originally Posted by azaghul View Post
    The majority of VICx and VWIC cards will work fine in the 2800 series, just add PVDM2's and viola, a working POTS voice gateway! No NME required, though they can still be used.

    I think there are a handful of VIC's that are unsupported (VIC-2FXO?, VIC-2FXS?, VIC-2E&M), mostly the original 1st Generation 2 port VIC's, but any later ones should be fine.
    I looked up the VIC-4FXS/DID card, and it looks like it is EoL, but is supported in the 2811. Am I correct in assuming this card supports the same functions as the VIC2-2FXS and VIC2-4FXS cards?

    Thanks,

    Russ
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    #11
    Hi Russ,

    There may be some feature enhancements as the cards mature, as VICs became VIC2s became VIC3s (caller ID, fax/modem support, etc [and I'm just guessing at actual features]). But being an FXS card, the device attached is not that intelligent anyway. I think most/all 1st generation VICs are now EOL.

    The main difference/feature is the 4FXS/DID is also capable analogue Direct Inwards Dialling from the PSTN to attached phones, not sure if the later cards support that. Not something I've actually tested. Usually once you get tho the stage of needing DID (usually due to company growth/port density), full/fractional ISDN PRI would become a stronger contender.
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  13. Senior Member sacredboy's Avatar
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    #12
    After earning CCNP R&S I'm going to start to learn the CCNA VOICE. I already have L2 and L3 switches.
    There are almost no questions concerning routers and cards. However not all clear about the Cisco Unified software.
    As far as I understood from the CCNA Voice Lab Manual book track at least CUCM, CUC and CUPS are required.
    While not diving deeply into this subject I suspect that this software is not free. Actually the questions on this list of software are the next:
    1. Will I have to buy it? If yes then how much will it cost?
    2. If I'm no mistaken the software should be installed on VMware Workstation. Why it should be installed on virtual machine?
    Best, sacredboy!
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  14. Senior Member DexterPark's Avatar
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    #13
    Quote Originally Posted by sacredboy View Post
    1. Will I have to buy it? If yes then how much will it cost?2. If I'm no mistaken the software should be installed on VMware Workstation. Why it should be installed on virtual machine?
    Cisco is a bit of a stickler on handing out Unified Communication software, so yes you will have to buy it. A quick search on Ebay for CUCM/CUPS/VOICE LAB shows virtual machines and lab kits for sale: cucm | eBay are typically vmdk files that are for an ESXi 4.1 host or you could run them on vmware workstation. The reason these should be installed on a VM is so that you have one physical machine running all your virtual lab servers instead of having half a dozen physical boxes sitting around eating up your electric bill, that are wasting RAM/CPU resources because they only utilize a small percent of them. Also, CUCM does a very strict hardware compatibility check so unless you want to buy several MCS servers : Supported Servers for Releases of Cisco Unified Communications Manager (Including Business Edition 3000/5000/6000 and Session Manager Edition) and Cisco Intercompany Media Engine* [Cisco 7800 Series Media Convergence Servers] - Cisco Systems
    My advice to anyone looking to advance their career would be to learn DevOps tools and methodologies. Learn how to write code in languages like Python and JavaScript. Not to be a programmer, but a network automation specialist who can do the job of 10 engineers in 1/3 of the time. Create a GitHub account, download PyCharm, play with Ansible, Chef, or Puppet. Automation isn't the future, it's here today and the landscape is changing dramatically.
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  15. Senior Member sacredboy's Avatar
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    #14
    Guys, is it a task to install VWIC2 and PVDM modules on router?
    Best, sacredboy!
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    #15
    no the VWIC will go right into the slot. For a PVDM you will have to open up the router on the 2800 routers, but its not hard.
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  17. Senior Member sacredboy's Avatar
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    #16
    BTW I know that in new 15.XX IOS some features should be licensed. Is there any features related to VOICE that should be licensed prior to using them?
    Last edited by sacredboy; 04-11-2013 at 05:37 PM.
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    #17
    yes you need to UC feature pack. Without that the voice commands will not work if you have a 2900/3900 series router.
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  19. Senior Member sacredboy's Avatar
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    #18
    On the one hand there is a 15.xx IOS that current CCNP VOICE track is based on. On the other hand with 12.xx IOS that is considered to be outdated in terms of VOICE track but there is much less headache related to licensing IOS features. Is there a compromise?
    Best, sacredboy!
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    #19
    For 2800/3800 series I'd recommend IOS v15.0/15.1 for mainline voice features (no license required), or 12.4T when you need gatekeeper functionality (limited to 90 day(?) eval under IOS v15.0/15/1).

    For older 1700/2600xm/3700 series we're limited to 12.4T.

    For newer 2900/3900 series, I guess if you can afford those you can afford the license as well .
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  21. Senior Member sacredboy's Avatar
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    #20
    About modules: is it enough WIC2-1MFT-T1/E1 and PVDM2-16 on each router or it is better to get some other modules?
    About phones: 3 is a minimum?
    About routers: is there any difference which one to buy 2801 or 2811 (i.e. which one is more preferable)?
    About IOS: should it be adventerprise?
    Last edited by sacredboy; 04-12-2013 at 08:08 AM.
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    #21
    For modules: WIC2-1MFT-T1/E1 + PVDM2-16 will be fine for each router, if you can get VIC-4FXO and/or VIC-4FXS (to config analogue ports) and PVDM2-32 (to config transcoding/conferencing) for one router it would be handy
    For phones: 3 minimum + CIPC soft phone, CP7941/42/61/62 prefered
    For routers: depending on price, I'd recommend the 2811, you get an added NM slot and its quieter
    For IOS: adventerprise, advipservices, ipvoice in decreasing order.
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  23. Senior Member sacredboy's Avatar
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    #22
    Guys what is the minimum and what is preferable amount of flash memory for 15 IOS + CME ?
    Best, sacredboy!
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  24. Senior Member DexterPark's Avatar
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    #23
    Quote Originally Posted by sacredboy View Post
    Guys what is the minimum and what is preferable amount of flash memory for 15 IOS + CME ?
    128 meg is pretty standard, i guess preferable would be 256 or 512 is you got 2 flash slots like on most ISR routers (2800 series, 2900, etc...)
    My advice to anyone looking to advance their career would be to learn DevOps tools and methodologies. Learn how to write code in languages like Python and JavaScript. Not to be a programmer, but a network automation specialist who can do the job of 10 engineers in 1/3 of the time. Create a GitHub account, download PyCharm, play with Ansible, Chef, or Puppet. Automation isn't the future, it's here today and the landscape is changing dramatically.
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  25. Senior Member sacredboy's Avatar
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    #24
    Hi guys. Is it OK to obtain VWIC2-1MFT-T1/E1 WAN instead of VWIC2-2MFT-T1/E1 WAN and PVDM2-16 instead of PVDM2-32?
    Best, sacredboy!
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  26. Senior Member DexterPark's Avatar
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    #25
    Quote Originally Posted by sacredboy View Post
    Hi guys. Is it OK to obtain VWIC2-1MFT-T1/E1 WAN instead of VWIC2-2MFT-T1/E1 WAN and PVDM2-16 instead of PVDM2-32?
    That's entirely up to you, but I would definitely go PVDM2-32.
    My advice to anyone looking to advance their career would be to learn DevOps tools and methodologies. Learn how to write code in languages like Python and JavaScript. Not to be a programmer, but a network automation specialist who can do the job of 10 engineers in 1/3 of the time. Create a GitHub account, download PyCharm, play with Ansible, Chef, or Puppet. Automation isn't the future, it's here today and the landscape is changing dramatically.
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