I'm confused a bit about the following and was hoping to get some answers on this group - What is exactly implied when we say asterisk can connect to a PSTN. Does it mean connecting to the PSTN via PRI/T1/E1? If yes, then I assume asterisk does not need to do any SS7 signaling and all it does (playing the role of a PBX) is to connect to a Class 5 Switch at the CO. Is this a correct statement? As I understand, Asterisk does not support SS7 signaling. So does this imply that asterisk cannot be really used in a CO as a Softswitch which would interface with the PSTN via SS7 signaling? If that is the case, the only softswitch functionality that Asterisk provides is the media conversion between TDM circuit and an IP network (using SIP)? Is this correct? Thanks in advance for any clarification. Deepak
Lal, Deepak (Contractor) wrote:> I'm confused a bit about the following and was hoping to get some answers on > this group - What is exactly implied when we say asterisk can connect to a PSTN. > Does it mean connecting to the PSTN via PRI/T1/E1?Basically. There are also POTS interfaces that work with asterisk.> If yes, then I assume > asterisk does not need to do any SS7 signaling and all it does (playing the role > of a PBX) is to connect to a Class 5 Switch at the CO. Is this a correct > statement?It _is_ the "Linux Open Source PBX" after all :)> As I understand, Asterisk does not support SS7 signaling. So does this imply > that asterisk cannot be really used in a CO as a Softswitch which would > interface with the PSTN via SS7 signaling?AFIAK, Asterisk does not speak SS7. However, SS7 is not the only requirement in a softswitch application. Another critical feature would be supporting GR-303 interfaces.> If that is the case, the only > softswitch functionality that Asterisk provides is the media conversion between > TDM circuit and an IP network (using SIP)? Is this correct?Pretty much. It's not a softswitch, it's a PBX :) I can't say for sure, but I doubt the developers are aiming toward providing all of the features requred for a softswitch. Jerimiah Tularosa Communications
----- Original Message ----- From: "Lal, Deepak (Contractor)" <dlal@harris.com> To: <asterisk-users@lists.digium.com> Sent: Friday, October 24, 2003 3:09 PM Subject: [Asterisk-Users] SS7 signaling/Softswitch> I'm confused a bit about the following and was hoping to get some answerson> this group - What is exactly implied when we say asterisk can connect to aPSTN.> Does it mean connecting to the PSTN via PRI/T1/E1? If yes, then I assume > asterisk does not need to do any SS7 signaling and all it does (playingthe role> of a PBX) is to connect to a Class 5 Switch at the CO. Is this a correct > statement?* can be connected to PSTN using ISDN-PRI or MFC:R2 to bring up links with Class V switches. Also, you can connect using FXO and FXS hardware.> > As I understand, Asterisk does not support SS7 signaling. So does thisimply> that asterisk cannot be really used in a CO as a Softswitch which would > interface with the PSTN via SS7 signaling?My people is starting to work in some CCS7 basic implementation, but at this time no code was released. At this time, they are working in FISU and LSSU treatment... Anyway, in certanly implemetations you don't need CCS7 to connect to CO. You always can connect with PRI... same speed and same functionalities to user side. In fact, CCS7 is the support for ISDN-PRI avanced features. If you could connect with Lucent 5ESS you can have a PRI treated as route...>If that is the case, the only > softswitch functionality that Asterisk provides is the media conversionbetween> TDM circuit and an IP network (using SIP)? Is this correct?No, its not 100% accured. * can be used as Softswitch in MGCP... all "good" softswitchs uses MGCP/TGCP/NCS to manage each endpoint. I have 1 * box under test with Cisco BTS10200, and * works very fine with this softswitch. You could use SIP too... Regards, Gus> > Thanks in advance for any clarification. > > Deepak > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users
On Fri, 2003-10-24 at 16:29, CW_ASN - Gus wrote:> No, its not 100% accured. * can be used as Softswitch in MGCP... all "good" > softswitchs uses MGCP/TGCP/NCS to manage each endpoint. I have 1 * box under > test with Cisco BTS10200, and * works very fine with this softswitch. You > could use SIP too...Can you explain that setup a bit more ? You mean that BTS is controling the * box using MGCP or the inverse ? Cause a I have an * box using a BTS+AS5300 as its PTSN gateway using SIP. But the BTS receives the SS7 signaling(via an ITS i think) and controls the AS5300 via MGCP. Then the * box it is another SIP route inside the BTS. -- Juanjo sin .sig
Juan: I think that we must continue with the discussion out of this list. "Te contacto por fuera de la lista." Regards, Gus ----- Original Message ----- From: "Juan J. Sierralta P." <juanjo@atmlab.utfsm.cl> To: "Asterisk Users" <asterisk-users@lists.digium.com> Sent: Friday, October 24, 2003 7:50 PM Subject: Re: [Asterisk-Users] SS7 signaling/Softswitch> On Fri, 2003-10-24 at 16:29, CW_ASN - Gus wrote: > > > No, its not 100% accured. * can be used as Softswitch in MGCP... all"good"> > softswitchs uses MGCP/TGCP/NCS to manage each endpoint. I have 1 * boxunder> > test with Cisco BTS10200, and * works very fine with this softswitch.You> > could use SIP too... > > Can you explain that setup a bit more ? > You mean that BTS is controling the * box using MGCP or the inverse ? > Cause a I have an * box using a BTS+AS5300 as its PTSN gateway using > SIP. But the BTS receives the SS7 signaling(via an ITS i think) and > controls the AS5300 via MGCP. Then the * box it is another SIP route > inside the BTS. > > > -- > Juanjo sin .sig > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users
Interesting. Someone thinks that a strategic use for * should be off this list. Someone thought my FAX modem for * should be off this list. However, nobody seems to think a 1000 messages about Grandstream phones should be off this list. Personally I would welcome seeing more of what people are doing in the softswitch area. Regards, Steve CW_ASN wrote:>Juan: > >I think that we must continue with the discussion out of this list. > >"Te contacto por fuera de la lista." > >Regards, > >Gus > >----- Original Message ----- >From: "Juan J. Sierralta P." <juanjo@atmlab.utfsm.cl> >To: "Asterisk Users" <asterisk-users@lists.digium.com> >Sent: Friday, October 24, 2003 7:50 PM >Subject: Re: [Asterisk-Users] SS7 signaling/Softswitch > > > > >>On Fri, 2003-10-24 at 16:29, CW_ASN - Gus wrote: >> >> >> >>>No, its not 100% accured. * can be used as Softswitch in MGCP... all >>> >>> >"good" > > >>>softswitchs uses MGCP/TGCP/NCS to manage each endpoint. I have 1 * box >>> >>> >under > > >>>test with Cisco BTS10200, and * works very fine with this softswitch. >>> >>> >You > > >>>could use SIP too... >>> >>> >>Can you explain that setup a bit more ? >>You mean that BTS is controling the * box using MGCP or the inverse ? >>Cause a I have an * box using a BTS+AS5300 as its PTSN gateway using >>SIP. But the BTS receives the SS7 signaling(via an ITS i think) and >>controls the AS5300 via MGCP. Then the * box it is another SIP route >>inside the BTS. >> >> >>-- >>Juanjo sin .sig >> >>
Steve: Ok, if you like to hear about Cisco BTS10200 and Cisco ITP configurations, good... I have no problems with that... We will discuss HERE all the configurations needed to bring up a CCS7 links in ITP, how load a SPC formats, and how can I add an TGCP route in BTS... Sure! Why not? Regards, Gus ----- Original Message ----- From: "Steve Underwood" <steveu@coppice.org> To: <asterisk-users@lists.digium.com> Sent: Sunday, October 26, 2003 2:14 AM Subject: Re: [Asterisk-Users] SS7 signaling/Softswitch> Interesting. Someone thinks that a strategic use for * should be off > this list. Someone thought my FAX modem for * should be off this list. > However, nobody seems to think a 1000 messages about Grandstream phones > should be off this list. > > Personally I would welcome seeing more of what people are doing in the > softswitch area. > > Regards, > Steve > > CW_ASN wrote: > > >Juan: > > > >I think that we must continue with the discussion out of this list. > > > >"Te contacto por fuera de la lista." > > > >Regards, > > > >Gus > > > >----- Original Message ----- > >From: "Juan J. Sierralta P." <juanjo@atmlab.utfsm.cl> > >To: "Asterisk Users" <asterisk-users@lists.digium.com> > >Sent: Friday, October 24, 2003 7:50 PM > >Subject: Re: [Asterisk-Users] SS7 signaling/Softswitch > > > > > > > > > >>On Fri, 2003-10-24 at 16:29, CW_ASN - Gus wrote: > >> > >> > >> > >>>No, its not 100% accured. * can be used as Softswitch in MGCP... all > >>> > >>> > >"good" > > > > > >>>softswitchs uses MGCP/TGCP/NCS to manage each endpoint. I have 1 * box > >>> > >>> > >under > > > > > >>>test with Cisco BTS10200, and * works very fine with this softswitch. > >>> > >>> > >You > > > > > >>>could use SIP too... > >>> > >>> > >>Can you explain that setup a bit more ? > >>You mean that BTS is controling the * box using MGCP or the inverse ? > >>Cause a I have an * box using a BTS+AS5300 as its PTSN gateway using > >>SIP. But the BTS receives the SS7 signaling(via an ITS i think) and > >>controls the AS5300 via MGCP. Then the * box it is another SIP route > >>inside the BTS. > >> > >> > >>-- > >>Juanjo sin .sig > >> > >> > > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users
OK. If are talking about masses of messy details, then I agree with you. Regards, Steve CW_ASN wrote:>Steve: > >Ok, if you like to hear about Cisco BTS10200 and Cisco ITP configurations, >good... I have no problems with that... >We will discuss HERE all the configurations needed to bring up a CCS7 links >in ITP, how load a SPC formats, and how can I add an TGCP route in BTS... >Sure! Why not? > > >Regards, > >Gus > >----- Original Message ----- >From: "Steve Underwood" <steveu@coppice.org> >To: <asterisk-users@lists.digium.com> >Sent: Sunday, October 26, 2003 2:14 AM >Subject: Re: [Asterisk-Users] SS7 signaling/Softswitch > > > > >>Interesting. Someone thinks that a strategic use for * should be off >>this list. Someone thought my FAX modem for * should be off this list. >>However, nobody seems to think a 1000 messages about Grandstream phones >>should be off this list. >> >>Personally I would welcome seeing more of what people are doing in the >>softswitch area. >> >>Regards, >>Steve >> >>CW_ASN wrote: >> >> >> >>>Juan: >>> >>>I think that we must continue with the discussion out of this list. >>> >>>"Te contacto por fuera de la lista." >>> >>>Regards, >>> >>>Gus >>> >>>----- Original Message ----- >>>From: "Juan J. Sierralta P." <juanjo@atmlab.utfsm.cl> >>>To: "Asterisk Users" <asterisk-users@lists.digium.com> >>>Sent: Friday, October 24, 2003 7:50 PM >>>Subject: Re: [Asterisk-Users] SS7 signaling/Softswitch >>> >>> >>> >>> >>> >>> >>>>On Fri, 2003-10-24 at 16:29, CW_ASN - Gus wrote: >>>> >>>> >>>> >>>> >>>> >>>>>No, its not 100% accured. * can be used as Softswitch in MGCP... all >>>>> >>>>> >>>>> >>>>> >>>"good" >>> >>> >>> >>> >>>>>softswitchs uses MGCP/TGCP/NCS to manage each endpoint. I have 1 * box >>>>> >>>>> >>>>> >>>>> >>>under >>> >>> >>> >>> >>>>>test with Cisco BTS10200, and * works very fine with this softswitch. >>>>> >>>>> >>>>> >>>>> >>>You >>> >>> >>> >>> >>>>>could use SIP too... >>>>> >>>>> >>>>> >>>>> >>>>Can you explain that setup a bit more ? >>>>You mean that BTS is controling the * box using MGCP or the inverse ? >>>>Cause a I have an * box using a BTS+AS5300 as its PTSN gateway using >>>>SIP. But the BTS receives the SS7 signaling(via an ITS i think) and >>>>controls the AS5300 via MGCP. Then the * box it is another SIP route >>>>inside the BTS. >>>> >>>> >>>>-- >>>>Juanjo sin .sig >>>> >>>> >>>> >>>>
Man, getting the "masses of messy details" out in the open is what this is all about. Let it flow and we all get better and can do better! Steve Underwood wrote:> OK. If are talking about masses of messy details, then I agree with you. > > Regards, > Steve > > CW_ASN wrote: > >> Steve: >> >> Ok, if you like to hear about Cisco BTS10200 and Cisco ITP >> configurations, >> good... I have no problems with that... >> We will discuss HERE all the configurations needed to bring up a CCS7 >> links >> in ITP, how load a SPC formats, and how can I add an TGCP route in BTS... >> Sure! Why not? >> >> >> Regards, >> >> Gus >> >> ----- Original Message ----- >> From: "Steve Underwood" <steveu@coppice.org> >> To: <asterisk-users@lists.digium.com> >> Sent: Sunday, October 26, 2003 2:14 AM >> Subject: Re: [Asterisk-Users] SS7 signaling/Softswitch >> >> >> >> >>> Interesting. Someone thinks that a strategic use for * should be off >>> this list. Someone thought my FAX modem for * should be off this list. >>> However, nobody seems to think a 1000 messages about Grandstream phones >>> should be off this list. >>> >>> Personally I would welcome seeing more of what people are doing in the >>> softswitch area. >>> >>> Regards, >>> Steve >>> >>> CW_ASN wrote: >>> >>> >>> >>>> Juan: >>>> >>>> I think that we must continue with the discussion out of this list. >>>> >>>> "Te contacto por fuera de la lista." >>>> >>>> Regards, >>>> >>>> Gus >>>> >>>> ----- Original Message ----- >>>> From: "Juan J. Sierralta P." <juanjo@atmlab.utfsm.cl> >>>> To: "Asterisk Users" <asterisk-users@lists.digium.com> >>>> Sent: Friday, October 24, 2003 7:50 PM >>>> Subject: Re: [Asterisk-Users] SS7 signaling/Softswitch >>>> >>>> >>>> >>>> >>>> >>>> >>>>> On Fri, 2003-10-24 at 16:29, CW_ASN - Gus wrote: >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>> No, its not 100% accured. * can be used as Softswitch in MGCP... all >>>>>> >>>>>> >>>>>> >>>>> >>>> "good" >>>> >>>> >>>> >>>> >>>>>> softswitchs uses MGCP/TGCP/NCS to manage each endpoint. I have 1 * >>>>>> box >>>>>> >>>>>> >>>>>> >>>>> >>>> under >>>> >>>> >>>> >>>> >>>>>> test with Cisco BTS10200, and * works very fine with this softswitch. >>>>>> >>>>>> >>>>>> >>>>> >>>> You >>>> >>>> >>>> >>>> >>>>>> could use SIP too... >>>>>> >>>>>> >>>>>> >>>>> >>>>> Can you explain that setup a bit more ? >>>>> You mean that BTS is controling the * box using MGCP or the inverse ? >>>>> Cause a I have an * box using a BTS+AS5300 as its PTSN gateway using >>>>> SIP. But the BTS receives the SS7 signaling(via an ITS i think) and >>>>> controls the AS5300 via MGCP. Then the * box it is another SIP route >>>>> inside the BTS. >>>>> >>>>> >>>>> -- >>>>> Juanjo sin .sig >>>>> >>>>> >>>>> >>>> > > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users >