Thank you very much for this hint. My apologies that I messed up a thread for my post - I had a message open and simply clicked on the link ... slap slap. Would anyone know of a better choice to multiplex three fxo lines into an asterisk box? I can still use three Digium X100P cards, but methinks, a seperate unit would be better. Thanks again, Peter>> I am located in the UK and am looking into connecting three analog BT lines to an astersik system which >> is replacing our current pbx. I could use three Digium wildcard x100p cards for that but I rather >> use a unit which is external to the computer to have a better separation of analogue/digital side. I >> would not like to go ISDN because the analog lines have so far sufficed in every repect and I tend >> not to fix what isn't broken. >> >> Today I found a unit on a supplier's website >> >> http://www.peripheralcorner.co.uk/product_info.php/cPath/113/products_id/544 >> >> which is a >> >> Micronet SP5054 VoIP Gateway 4 FXO Ports >> >> The website for this product is >> >> http://www.micronet.info/Products/voip/SP5054.asp >> >> >> and it appears to me that this unit would (similar to a channel bank) multiplex our three BT lines >> into one LAN port. If so, I could simply connect such a box to a LAN port in my asterisk server. I >> suspect the unit would appear to the asterisk box like three SIP-to-fxo converters (sorry for the >> horrible beginner-jargon). I basically would like to know whether I could use this unit instead of >> three x100P cards and it would functionally replace them. >> >> Questions >> >> >> * Would it be legal in the UK to connect such a unit to the PSTN ? >> In the specifications >> >> http://www.micronet.info/Products/voip/SP5054.asp#Specif >> >> there seems to be CE regulatory approval (see bottom row of table, Emission), >> but I don't know whether that is sufficient for use with a PSTN in the UK. >> >> >> * Could I operate the unit in a transparent fashion, i.e. it would look to the asterisk >> machine as if I had connected three SIP-to-fxo converters which I can control >> independently of each other from the asterisk machine? >> For example, could I initiate / receive a phone call while another phone conversation >> is running? For outgoing calls, could I specify which fxo port to use / for incoming >> calls, could I find out which port answered it? >> >> >> * Would the fxo ports match the UK PSTN specifications (impedance)? >> >> I am asking in this list just in case that someone has used / is using such voip gateways. I am >> still very much in the enquiry phase. Thank you very much for your consideration. >> >> Peter> On 29 Nov 2004, at 17:30, Peter Hoppe wrote: > > > Micronet SP5054 VoIP Gateway 4 FXO Ports > > We bought one of these units and had a lot of grief with them. The SIP > firmware isn't great at all IMHO. For H.323 they work just fine. > > Stephan Wik-- There are 10 kinds of people in the world, those who understand binary, and those who don't.
Most people get echo issues with x100p's in the UK due to mismatched impedance, the newer TDM400P is much better, and you could get this with 3 FXO modules (otherwise known as a TDM03B I believe). HTH Ed -----Original Message----- From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Peter Hoppe Sent: 30 November 2004 12:14 To: asterisk-users@lists.digium.com Subject: [Asterisk-Users] fxo connection in the UK Thank you very much for this hint. My apologies that I messed up a thread for my post - I had a message open and simply clicked on the link ... slap slap. Would anyone know of a better choice to multiplex three fxo lines into an asterisk box? I can still use three Digium X100P cards, but methinks, a seperate unit would be better. Thanks again, Peter>> I am located in the UK and am looking into connecting three analog BTlines to an astersik system which>> is replacing our current pbx. I could use three Digium wildcard x100pcards for that but I rather>> use a unit which is external to the computer to have a better separationof analogue/digital side. I>> would not like to go ISDN because the analog lines have so far sufficedin every repect and I tend>> not to fix what isn't broken. >> >> Today I found a unit on a supplier's website >> >>http://www.peripheralcorner.co.uk/product_info.php/cPath/113/products_id/544>> >> which is a >> >> Micronet SP5054 VoIP Gateway 4 FXO Ports >> >> The website for this product is >> >> http://www.micronet.info/Products/voip/SP5054.asp >> >> >> and it appears to me that this unit would (similar to a channel bank)multiplex our three BT lines>> into one LAN port. If so, I could simply connect such a box to a LAN portin my asterisk server. I>> suspect the unit would appear to the asterisk box like three SIP-to-fxoconverters (sorry for the>> horrible beginner-jargon). I basically would like to know whether I coulduse this unit instead of>> three x100P cards and it would functionally replace them. >> >> Questions >> >> >> * Would it be legal in the UK to connect such a unit to the PSTN ? >> In the specifications >> >> http://www.micronet.info/Products/voip/SP5054.asp#Specif >> >> there seems to be CE regulatory approval (see bottom row of table,Emission),>> but I don't know whether that is sufficient for use with a PSTN in theUK.>> >> >> * Could I operate the unit in a transparent fashion, i.e. it would lookto the asterisk>> machine as if I had connected three SIP-to-fxo converters which I cancontrol>> independently of each other from the asterisk machine? >> For example, could I initiate / receive a phone call while anotherphone conversation>> is running? For outgoing calls, could I specify which fxo port to use/ for incoming>> calls, could I find out which port answered it? >> >> >> * Would the fxo ports match the UK PSTN specifications (impedance)? >> >> I am asking in this list just in case that someone has used / is usingsuch voip gateways. I am>> still very much in the enquiry phase. Thank you very much for yourconsideration.>> >> Peter> On 29 Nov 2004, at 17:30, Peter Hoppe wrote: > > > Micronet SP5054 VoIP Gateway 4 FXO Ports > > We bought one of these units and had a lot of grief with them. The SIP > firmware isn't great at all IMHO. For H.323 they work just fine. > > Stephan Wik-- There are 10 kinds of people in the world, those who understand binary, and those who don't. _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
>The TDM fxo modules aren't approved for use in the UK yet - use at yourown risk.> >JonBut they do work great in the UK :-) R's Ian
I have used a x100P card in the test system, and it has performed *reasonably* well with some echo. I bought it from telappliant, so I guess it's approved for a UK context. If it is the most practical solution I stick with three x100P cards. In the test system I had some trouble when I used a handytone286 adapter with an Audioline503 economy telephone (No other phone did ring on incoming calls; sometimes dialled wrong number when I used BT analog line; audio sounds 'rough' and 'too bright'). Connection was fine with a grandstream IP phone (BT-100). UK approval is a make-or-break issue for me, as I would not like to connect unapproved devices to a public network. The other solution I had a look at was an adit600 channel bank with an 8-way fxo card and fxs cards - but I dropped that option for the fxo side because the CAC fxo module seems not to be approved for UK use either. Many thanks for all your comments so far! Peter> On Tuesday 30 November 2004 13:05, Edward Eastman wrote: >> Most people get echo issues with x100p's in the UK due to mismatched >> impedance, the newer TDM400P is much better, and you could get this with 3 >> FXO modules (otherwise known as a TDM03B I believe). >> > The TDM fxo modules aren't approved for use in the UK yet - use at your own > risk. > > Jon-- There are 10 kinds of people in the world, those who understand binary, and those who don't.