Blueface over ISDN

[tompaddy]

Dear all,

I am not sure if i have the correct forum.

currently broadband is not in my area but is ear marked in the near future (when ever that will be).

I was thinking of ordering 2 ISDN lines or one what ever way Eircom sell it.

then connect the Netgear fwg114pv2 DSL/ISDNmodem/firewall/router/ata to the ISDN line.

http://kbserver.netgear.com/products/fwg114pv2.asp

behind that i could set up an 8 or higher switch and connected to that an IP-Based PBX (linksys) and a couple of IP phones along with 3 or 4 computers.

when broadband eventually comes i can dump the ISDN netgear router and opt for one of bluefaces router solutions.

Is this even possible?

is it possible to have both computers and VoIP (IP phones IP based PBX) go over ISDN lines?

internet requirement would be low volume. But even at that there might not be enough throughput for the 2 VoIP phones.

any ideas?

there is a wireless broadband in the area but they are expensive per month around 100 euro and have an install fee of 200 euro for a 2048kbps download and 256kbps upload with 25:1 contention rate. (not sure if they provide Static IP addresses yet)

My worry was that VoIP would not work well over wireless so thats why i was thinking of the crazy ISDN temporary solution until the DSL wired solution comes.

maybe i am thinking too much and should go for the wirless broadband option and can change over from it if need be when the wired solution arrives.

comments, feedback?

[Aaron]

Originally Posted by tompaddy

Is this even possible?

Yes it's possible and that's a fairly standard network configuration you've got so conencting everything up should be ok.

Originally Posted by tompaddy

is it possible to have both computers and VoIP (IP phones IP based PBX) go over ISDN lines?

Yes.

Originally Posted by tompaddy

internet requirement would be low volume. But even at that there might not be enough throughput for the 2 VoIP phones.

This is where my main concern would be. I think Eircom sell the ISDN channels in pairs so theoretically you would have 128Kbps to play with however that's before your traffic gets dropped onto their backhaul and internet links and the contention ratios kick in.

You'd probably be in the same situation as most people in that you would need to limit your other internet activity when on the phone. If you've got 3 or 4 computers that could be difficult. In addition you would definitely not be able to put more than 2 calls at a time reliably over the IP connection.

Originally Posted by tompaddy

there is a wireless broadband in the area but they are expensive per month around 100 euro and have an install fee of 200 euro for a 2048kbps download and 256kbps upload with 25:1 contention rate. (not sure if they provide Static IP addresses yet)

My worry was that VoIP would not work well over wireless so thats why i was thinking of the crazy ISDN temporary solution until the DSL wired solution comes.

Some wireless providers do work quite well for VoIP others are not so great. Maybe post up on the forums about asking whether anybody is having any success using VoIP on the provider in question.

It would depend on what you were looking at broadband and VoIP for if it's to save money on calls then a €100/month broadband solution would need a lot of international calls to payback...

[tompaddy]

Thanks Aaron.

your quite right, a 100 Euro on wireless and appros 40 euro on blueface a month needs a large number of phone calls to cover it in conventional means.

can i ask a non blueface question but with the hope of getting blueface in the near future.

is it possible to use the netgear fwg114pv2 box to at least have 2 pc'c access the internet (low volume) over ISDN and have say a ISDN PBX system in place for the phones (be it analog ot VoIP).

that is, all traffic data and VoIP go through the netgear all-in-one box.

when eircom get their act together and get broadband in, i can sell the ISDN PBX and buy the cheaper Linksys one for VoIP Blueface calls.

i wonder since ISDN is digital, would any IP based PBX work?

If i ask eircom to send out a ISDN line do tehy supply some sort of ISDN router device like say most broadband companies do?

sorry for the possible rediculous questioning.

[Aaron]

Originally Posted by tompaddy

is it possible to use the netgear fwg114pv2 box to at least have 2 pc'c access the internet (low volume) over ISDN and have say a ISDN PBX system in place for the phones (be it analog ot VoIP).

The fwg114pv2 has 4 LAN ports so connecting the PCs will be ok. The question is whether the Eircom ISDN set up will allow one channel for a call to Eircom to establish the internet connection and the second ISDN line to go into your ISDN PBX. I have never seen or used an Eircom ISDN modem or connection but I suspect the answer to this is that you could. Someone on boards would probably know for sure http://www.boards.ie/vbulletin/forumdisplay.php?f=259.[/QUOTE]

Originally Posted by tompaddy

that is, all traffic data and VoIP go through the netgear all-in-one box.

No you couldn't put the ISDN PBX traffic through the Netgear but then you wouldn't need to. The ISDN PBX would be setting up its own calls directly onto the second ISDN line.

Originally Posted by tompaddy

i wonder since ISDN is digital, would any IP based PBX work?

ISDN signals are definitely digital (Integrated Services Digital Network ). However ISDN is not IP (as in TCP/IP that you can use to get to the internet) so are not particualrly useful for you in this situation. You run IP over ISDN which is what the Eircom modem will do for you. In the case of your ISDN PBX the voice call goes over ISDN directly and the voice data is packaged up directly into the ISDN packet.[/QUOTE]

Originally Posted by tompaddy

If i ask eircom to send out a ISDN line do tehy supply some sort of ISDN router device like say most broadband companies do?

I'd say they definitely do. If you decide to call them all you would need to check is that you can use one ISDN line for internet and one for your ISDN PBX.

[wfitz]

thanks for all the advice.

I will try the wireless route and hold off on the ISDN line. I will need wireless broadband anyhow for internet traffic (albeit low volume, it would be handy for PC system upgrades etc.)

So i'll go with trying the VoIP solution over 2Mb download and 256 kbps upload which should be fine for 2 voIP phones.

if all else fails i will get in the rather expensive Eircom ISDN line with its seeminly harder configuration issues.

thanks for everything,
Tom.

Originally Posted by Aaron

The fwg114pv2 has 4 LAN ports so connecting the PCs will be ok. The question is whether the Eircom ISDN set up will allow one channel for a call to Eircom to establish the internet connection and the second ISDN line to go into your ISDN PBX. I have never seen or used an Eircom ISDN modem or connection but I suspect the answer to this is that you could. Someone on boards would probably know for sure http://www.boards.ie/vbulletin/forumdisplay.php?f=259.

No you couldn't put the ISDN PBX traffic through the Netgear but then you wouldn't need to. The ISDN PBX would be setting up its own calls directly onto the second ISDN line.

ISDN signals are definitely digital (Integrated Services Digital Network ). However ISDN is not IP (as in TCP/IP that you can use to get to the internet) so are not particualrly useful for you in this situation. You run IP over ISDN which is what the Eircom modem will do for you. In the case of your ISDN PBX the voice call goes over ISDN directly and the voice data is packaged up directly into the ISDN packet.[/QUOTE]

I'd say they definitely do. If you decide to call them all you would need to check is that you can use one ISDN line for internet and one for your ISDN PBX.[/QUOTE]