voip trunk ?

[norstarboy125]

Hello all,

I have a new install where I have to tie together 2 sites with BCM's and some other sites that are going to just have ip sets. The 2 BCM's should be tied together with voip trunks and I have tied together many MICS's and Option Pbx's with point to point T1's or e&m's but I'm new to the voip trunk set up. I know that you need keycodes for both BCM's and i'm sure you have to build dest. codes,routes, and taget lines correct? but what kind of setting are needed on the networks-routers that the BCM's will be connected to for them to allow voice.Can someone advise......

thanks

 

[norstarboy125]

come on nobody can help me! I need to no about these voip trunks and how they work so I can feel better installing them.

 

[DigitelD]

What version of BCM?
Yes you will have to setup routing and target lines.

SHK Certified (School of Hard Knocks)

 

[biv343]

The docs that come with the BCM outline all the steps required for programming the BCM.

The requirements for your network gear can vary depending on the number of calls, the transport in use, etc. It's not typically just a matter of "turn on QOS" and run.

 

[norstarboy125]

I'm not 100% sure if they are going with BCM 50's or 200's. It should not be to much calling back and forth cause there are only going to be around 12 to 16 sites per site with other remote sites just going with IP2004'S or I2050's. I'm familiar with BCM's just not with VoIP trunks but they seem like the way to go when connecting BCM.I'm assuming both networks that the BCM's are linked to need to be able to talk to each other but I'm not sure where are the trunks coming from how do I know where to find them, do I just put them in a pool, route, with a dest. code them I'm good, do thet have dial tone or are they silent? Please know that I'm a VoIP trunk newbie so bare with me if some of these questions are basic to you guys.

 

[norstarboy125]

oh yeah they what centralized voicemail for all sites, how complicated is this

 

[acewarlock]

Get a Vendor to set it up for you and then you can maintain it. there are to many varabiles involved to guess at.

 

[norstarboy125]

acewarlock, I'm the vendor I have 13 yrs. exp. in Nortel PBX & Key equipment I just needed some light shined on the VoIP trunk part if someone knows can you please help cause I need to be able to set these BCM's up next week.I can handle the BCM programming I just need to know more about the router/network set-up you know the part that i'm not sure about. I install the keycodes for VoIP trunks and MCDN and I know they usually get set-up as H323 or SIP is there a seperate charge from the clec for this or do the keycodes are all I need. Acewarlock you can talk tech talk I'm not green at all I have many years of Norstar & Option 11-81C
experience I have tied together Option 81's with point to points and MICS'S but I have never used VoIP trunks ever I can't see it being that difficult like I said I just need some detailed info.

 

[HungryHouse]

I would go with H.323 as you will find more support and more experience out there for this. Also, I believe that the MCDN feature set is still not complete when running SIP. I do agree with BIV on this. Each network will have its own challenges...however here are a few basic things to consider:
Since a VOIP trunk is across a data pipe, it would be helpful if you can tell us what kind of data pipe is between the two sites including the guaranteed bandwidth and if there are any differentiated service already set up for this (example..MPLS or ATM)..of is it just a ppp T1/Ft1 , Ethernet? VPN? etc? Each will have its own overhead differences and bandwidth limits. The throughput on the link and expected call volume will be indicators of what CODEC you'll need. With only 12-16 calls at max simultaneous, at ~ 100kbps/call
(assuming uncompressed), your at about a T1's worth of bandwidth..and I didnt even add any L2 Overhead. If you have less bandwidth on the pipe, I would compress - use G.729. The issue of ensuring the call quality across the link will depend on what routers and switches it will pass, and how you set up QOS on them. I would recommend DSCP if possible on the devices off the BCMs. I do agree that it is imperative to learn of their LAN and WAN infrastructure immediately including any firewalls/security devices across the routed link.
I hope this helps?

-HH

 

[norstarboy125]

Do I need to have a PRI,T1,ptp. to have my VoIP trunks to work or can I just have copper trunks at the sites do to the fact that there aren't that many end users at these locations wth no DID's are needed or anything so that's one question. Another thing is I'm still not to sure about where the actual VoIP trunks are coming from are they just vertual trunks that strictly work when the BCM is keycoded properly and connected to the cust. network there are no extra pricing from from telco to have these types of trunks correct,do they have dialtone or are they silent.I know about everything I have to do to install & sell this job but I just don't feel to positive with connecting these two BCM's with VoIP trunks and that is because this is the first time working on VoIP trunks. By the way HungerHouse I don't really know how the data aspect of the job I haven't been out to the job site yet.I do know that rght now each location has a MICS with a PTP T1 which I install many years ago and now they are ready to upgrade. What type of routers seem to be the best to use for a application like this and user friendly. I would greatly appreciate your guys info on this I just need some questions like these answered to help me figure this out.....thanks

 

[acewarlock]

Do you have a Data network between these sites?

 

[norstarboy125]

acewarlock, i don't know if there is a Data Network between sites, if I had to guess right now i would say yes but I can make sure. Can you shine some light on VoIP trunks I pick up things fast.

 

[norstarboy125]

come on guys help me out a little I would do it for you. DO I NEED A PRI/PTP T1/ CONNECTING MY BCMS OR DOES THERE JUST NEED TO BE A DATA TIE BETWEEN NETWORKS FOR VoIP TRUNKS TO WORK.I HAVE ASKED MORE QUESTIONS ON MY EARLIER POST CAN SOMEONE EXPLAIN MORE PLS....

 

[acewarlock]

If you have a data T1 between them, just plug the BCM IP LAN into the Router and use VOIP keycodes. I have 4 VOIP trunks at each of my 60 sites. You need to enter each site into the routing tables.

 

[norstarboy125]

does it have to be a data T1 between them or can it be a dsl or cable connection and do i need T1's for the incoming,outgoing,VoIP trunks, target lines to work or can I just have copper trunks used for incoming,outgoing calls
om the BCM's

 

[norstarboy125]

also what about 2 BCM's using one voicemail is anything special needed to be done to do this, can i just disable the one cp that i don't want to use and build all mboxs on one cp? how do remote sites check vmail?

 

[huffditty]

Norstarboy,

Yes it can be DSL or cable, I would make some tests by pinging across the WAN to the other sites with some know IP address at the other ends. If you can ping them and they can ping back. You can send them calls, providing the bandwidth is there. They are in fact virtual trunks. They will show up in the lines section of you active physical lines when the key codes are applied. You will have to set up target lines for each set with private recice digits set to their ext. I recommend keeping a goo dialing plan and network drawing on visio or something, given the amount of sites you are doing.

You will also have to configure you remote gateways, this will be the IP addresses of all the other sites, and then you can input you destination digits, into each individual remote gateway.

Then in routing, make destination codes of 2A, 3A, 4A, corresponding with the remote sites extensions, force all to go out the VoIP trunks, they are pooled like normal lines, for example on the 50 it will be line pool BlocA. Centralized voice mail sucks, you lose all the softkeys GDMB at sites, and AAX, there are work arounds but it is tough.

You will need MCDN key codes for VoIP trunks and centralized Voicemail...hope this helps

Huffditty

 

[madwok]

Ip trunk is nothing but a virtual pipe in a sense for interconnecting BCMs.
It can be p2p T1,MPLs,cable, dsl whatever as long as you can reach from one BCM to others ( of course you might have to throw in VPN, QOS, COS to secure and prioritize your voice over other packet if your pipe is mixed with data/video/voice . Your choice of bandwith is depend on how much traffic you want to use beetween locations. Remember data can be waited , but not your voice . Remember the CB radio day - yuck .

Copper, fiber is just transport media, you don't really care as it is the Cisco wiz kid bag !

IP trunk is SILENT, no dial tone at present software level- actually dial tone are nothing but artificially injected by LEC.

You treat it just like any pool, assign destination, route,digit mangle to your heart desire and treat it as private - not public , does that make sense ?

If you clever enough, you can share common service resources
for outbound dialing or inter site calling with ip trunk and fallback on PSTN if quality is less than your preset tolerance. Lots of neat stuff if you use SIP trunking like networking BCM to Asterik if you want to plunge into open source code kind of thing. SIP is slowy gaining ground but don't see many LEC support yet. Nortel charge you dearly as it REQUIRE you to buy H323 first then charge you SIP on top of it. It doesn't really want to sell SIP yet as its staff for supporting it pathethic.

In short, there is nothing to it on the BCM side. However,you will not get very far if you don't have a hang on the data network side as it can easily overwhelm you in dealing with firewall,VPN, QOS, COS gumbo if you don't have any one to help you in allowing/shaping your voice traffic to ride on the infrastructure -LAN/WAN wise

Hope all this making sense as I am still learning on my own . I had Nortel design my first IP trunking for linking 5 sites and it was a joke as their expertise in WAN infrastructure is - shall I say laughable if your data gear is not made by Nortel ...

 

[norstarboy125]

huffditty and madwok that's for all the info I feel good about the BCM programming side it's just the data side that I'm not a guru with yet....for now anyway I just need to get 1 under my belt then I'll be good.Is there a certain router with VPN,QOS ETC. that are reasonably priced and easy to install that you guys use? Also I noticed that huffditty had mentioned me needing to configure my remote gateways is this done through the BCM or router

 

[huffditty]

Yes it is in the BCM, it will be under Resources, and the telephony resources, then you will highlight your IP trunks section, and you can see it from the tabs there.

I am assuming that you are working on BCM 50, and 4.0 on the 400 or are you not?

let me know, I can't go off the top for the older 3.X software.