Want all phones to work VOIP

gabbo is coming

Hello,

I live in a house with a fairly old telephone system. The connection comes in at the kitchen door, there's an aul junction box, then a telephone box in the kitchen, front room and three of the bedrooms. Three normal phones and one cordless connected.

I'm going on to UPC soon and wanted to get blueface. I want to connect all the phones to the ATA.

So, disconnect the phone line coming from the pole to the kitchen door at the junction box. Then plug in the ATA to one of the telephone sockets and use the two copper wires going around the house as a "bus" that will enable all the phones connected to the copper wires via the other four telephone sockets as VOIP.

THis possible?

Rgs

paulm17781

I've never tried it but I'm nearly certain it is possible.

The other option is cordless phones tied to one base unit.

MickyJoe

Sounds fine - once you make sure that there is no connection between your internal cabling and incoming pair for your phone line.

There is a possiblility that the ATA or whatever you are using might have problems if the condition of the internal cabling is bad or if there is a lot of it but might as well try it and take it from there.

SwampThing

gabbo, can you point me at some of the gear you're going to use for this - I'm in a similar situation and hadn't even considered the existing cabling as an option.

Cheers.

probe

Siemens Gigaset 450IP
http://gigaset.siemens.com/shc/0,1935,hq_en_0_122378_rArNrNrNrN,00.html

Up to 6 DECT extensions, you can access your VoIP line and your PSTN line from any extension, hands free, supports SMS, transfer calls between extensions, etc.

Throw away your ATA! A relic of the PSTN era. Plug this directly into a free ethernet RJ45 termination in your router and the RJ11 into your PSTN line.

Manual: http://shc-download.siemens.com/repository/1254/125430/A31008-M1713-R201-3-7643_en_International.pdf

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eddiem74

probe wrote: »

Siemens Gigaset 450IP
http://gigaset.siemens.com/shc/0,1935,hq_en_0_122378_rArNrNrNrN,00.html

Is the 450 an older model, has it been replaced ? Also where would you recommend to source/buy these phones, online or ? Cheers !

steve-o

There seems to be a few similar threads at the moment. I mentioned in another thread that I have an S450 IP - http://gigaset.siemens.com/shc/0,1935,hq_en_0_123868_rArNrNrNrN,00.html - I got it online from Ligo.

probe

eddiem74 wrote: »

Is the 450 an older model, has it been replaced ? Also where would you recommend to source/buy these phones, online or ? Cheers !

What makes you think it is an older model? There is also the 455 which has voicemail. You can compare the features in the Siemens website. I don't live in Ireland - but I just did a quick google around and blueface.ie sell it. It is cheaper - €69 at http://www.trovaprezzi.it/prezzo_cordless_siemens_450ip.aspx - but you have to add the delivery charge from Italy.

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eddiem74

probe wrote: »

What makes you think it is an older model?

.probe

When I looked at siemens website I seen the 470 & 475 IP listed so assumed they must have replaced the 450 ?

probe

eddiem74 wrote: »

When I looked at siemens website I seen the 470 & 475 IP listed so assumed they must have replaced the 450 ?

There are lots of models out there - but given the rigged phone retail market in Ireland where most phone shops are owned by mobile phone network monopolists, and eircom no longer has shops (unlike France Telecom, Deutsche Telekom, Swisscom, Monaco Telecom, Mongolia Telecom, Republic of San Marino Telecom (www.smt.sm) or virtually any other telecom), you may have a problem finding them in a shop in rip off ireland! You can always buy stuff on your travels or on the internet of course...

http://www.gigaset-voip.com/voip2/

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eddiem74

probe wrote: »

There are lots of models out there - but given the rigged phone retail market in Ireland where most phone shops are owned by mobile phone network monopolists, and eircom no longer has shops (unlike France Telecom, Deutsche Telekom, Swisscom, Monaco Telecom, Mongolia Telecom, Republic of San Marino Telecom (www.smt.sm) or virtually any other telecom), you may have a problem finding them in a shop in rip off ireland! You can always buy stuff on your travels or on the internet of course...

http://www.gigaset-voip.com/voip2/

.probe

Ordered the C475IP from broadbandbuyer in the UK and few extra handsets. I am now entering the world of VOIP

probe

eddiem74 wrote: »

Ordered the C475IP from broadbandbuyer in the UK and few extra handsets. I am now entering the world of VOIP

While a GB sourced 475 will work fine as a VoIP phone, if you decide to connect it to an eircom landline as well, there will be a few issues.

1) Britain does not use the normal RJ11 connector used in most networks - they have their own home brew plug. The Siemens box will have an RJ11 connector in the base unit - so if you get (or have) an RJ11 to RJ11 connector you can replace the connector that will probably arrive in the package.

2) The line impedance and other electrical characteristics of a BT phone line are very different to those used by eircom - as a result you will get sub-optimal sound quality on calls using your eircom line. One hope is that Siemens have a "select your country" option in the installation process which changes the electrical settings on the base station to match the country you are in. The best place to buy phones for use in Ireland is Spain - because the Telefonica network uses similar settings and the same RJ11 connector as eircom. If there is a "select your country" option, there is no guarantee that it will change the PSTN line characterists - it might be focused on the VoIP set-up. If you are dumping your eircom line or don't have one - this doesn't matter of course.

Anyway this should be a minor issue as your main use will presumably be VoIP - which is not subject to these considerations.

To get the best sound quality use the G711a CODEC as your first choice - which is available on this device if you look at the set-up. This delivers 64k bits/sec sound quality - same as an ISDN channel - much better than a PSTN phone.

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steve-o

probe wrote: »

While a GB sourced 475 will work fine as a VoIP phone, if you decide to connect it to an eircom landline as well, there will be a few issues.

FWIW, I've had no problems with my UK-sourced Siemens phone.

probe

steve-o wrote: »

FWIW, I've had no problems with my UK-sourced Siemens phone.

You won't have "a problem" in terms of it failing to work. It is just the minor issues like connector incompatibility and slightly slower sound volume than you otherwise get with a properly calibrated phone for the Irish system.

Connecting a British phone(s) to a phone line which also works to feed a DSL modem may also reduce the DSL connection speed. This type of issue won't affect everybody - it depends on line quality, distance from MDF etc.

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eddiem74

probe wrote: »

To get the best sound quality use the G711a CODEC as your first choice - which is available on this device if you look at the set-up. This delivers 64k bits/sec sound quality - same as an ISDN channel - much better than a PSTN phone.

.probe

I have the following codecs listed:

G.722
G.711 a law
G.711 µ law
G.726
G.729

Should I move G.711a to the top as you suggested ?

probe

eddiem74 wrote: »

I have the following codecs listed:

G.722
G.711 a law
G.711 µ law
G.726
G.729

Should I move G.711a to the top as you suggested ?

Assuming you are in Europe, or most of the RoW, use G.711 a law as first choice on your list.

If you are in North America or one of their colonies, use G.711 µ law first.

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