[asterisk-users] protocol used to connect Asterisk and GSM core network (MSC)

Ngo-Vi Hoai-Anh hoaianh at gmx.de
Thu Apr 15 03:18:50 CDT 2010


Hi there,

ISDN is not a protocol. See 
http://en.wikipedia.org/wiki/Integrated_Services_Digital_Network#Internationale_Verbreitung 
for more details. As far as I know Vietnam uses DSS1 (Euro-ISDN).

The benefit of SS7 is that you can use a single signaling channel 
(D-Chan) for more E1s. I have 8 E1s with a single D-Chan at our site. 
Using DSS1 you have one D-Chan for one E1. From signaling point of view 
there is no gain if you just need one E1.

If you want to have a interconnection with that GSM telco you need a 
point code from  them and then configure your Asterisk box properly to 
receive calls.

I will fly to Vietnam next month. If you want to just feel free to email 
me. Maybe I can give you a helping hand there.

huu giang schrieb:
> Dear Goe.
>
> Do you mean, I just need request Telco provide me a E1 line, ask them 
> to configure MSC support SS7/ISUP, so my Asterisk can receive calls.
>
> What is the benefits if I use ISDN instead of  ISUP/SS7 and vice versa.
>
> Thanks.
>
> --- On *Wed, 4/14/10, Goke M Aruna /<goksie at gmail.com>/* wrote:
>
>
>     From: Goke M Aruna <goksie at gmail.com>
>     Subject: Re: [asterisk-users] protocol used to connect Asterisk
>     and GSM core network (MSC)
>     To: "Asterisk Users Mailing List - Non-Commercial Discussion"
>     <asterisk-users at lists.digium.com>
>     Date: Wednesday, April 14, 2010, 9:39 PM
>
>     Hi Huu,
>
>     Asterisk support ss7.
>     Check chan_ss7 and libss7, both project are active and working
>     like charm.
>
>     Thanks
>
>     On 4/15/10, huu giang <huugiang104 at yahoo.com
>     </mc/compose?to=huugiang104 at yahoo.com>> wrote:
>     > Dear Goke,
>     >
>     > I don't use ISDN to connect to MSC, it connect to ISDN network.
>     > There are other people deploy IVR using this protocol.
>     >
>     > About ISUP/SS7, supporting technical from the vendor I bought
>     Sangoma Card,
>     > they said that If I want to connect to MSC, I have to use
>     ISUP/SS7 protocl,
>     > but now Asterisk doesn't support SS7 protocol and I have to buy
>     a SS7
>     > package to install on Asterisk Server so Astersik can work with SS7.
>     >
>     > Is it right ?, It is the first time I deploy Asterisk, so please
>     consult me.
>     >
>     > Thanks
>     >
>     > Hiện tại,
>     > nếu anh dùng luồng
>     > ISDN thì không cần báo hiệu SS7 nhưng anh muốn kết nối trực tiếp
>     vào MSC
>     >  của Telco(SS7)
>     > là anh cần phải có giao thức SS7 để chúng bắt tay làm việc,
>     nhưng hiện
>     > tại trên
>     > tổng đài soft không hổ trợ, anh cần mua gói phần mền SS7 để cài
>     đặt vào
>     > tổng
>     > đài để chúng làm việc với giao thức SS7.
>     >
>     > --- On Wed, 4/14/10, Goke M Aruna <goksie at gmail.com
>     </mc/compose?to=goksie at gmail.com>> wrote:
>     >
>     > From: Goke M Aruna <goksie at gmail.com
>     </mc/compose?to=goksie at gmail.com>>
>     > Subject: Re: [asterisk-users] protocol used to connect Asterisk
>     and GSM core
>     > network (MSC)
>     > To: "Asterisk Users Mailing List - Non-Commercial Discussion"
>     > <asterisk-users at lists.digium.com
>     </mc/compose?to=asterisk-users at lists.digium.com>>
>     > Date: Wednesday, April 14, 2010, 4:24 AM
>     >
>     > hello Huu,
>     >
>     > Can you share their explanation with me at least, I can gain
>     from it too.
>     >
>     > Thanks
>     >
>     > On Wed, Apr 14, 2010 at 10:01 AM, huu giang
>     <huugiang104 at yahoo.com </mc/compose?to=huugiang104 at yahoo.com>> wrote:
>     >
>     >
>     > Hi Goke,
>     >
>     > Some experienced people said me to use ISDN to connect to MSC.
>     >
>     > Thanks very much.
>     >
>     >
>     > --- On Wed, 4/14/10, Goke M Aruna <goksie at gmail.com
>     </mc/compose?to=goksie at gmail.com>> wrote:
>     >
>     >
>     > From: Goke M Aruna <goksie at gmail.com
>     </mc/compose?to=goksie at gmail.com>>
>     > Subject: Re: [asterisk-users] protocol used to connect Asterisk
>     and GSM core
>     > network (MSC)
>     >
>     > To: "Asterisk Users Mailing List - Non-Commercial Discussion"
>     > <asterisk-users at lists.digium.com
>     </mc/compose?to=asterisk-users at lists.digium.com>>
>     > Date: Wednesday, April 14, 2010, 1:50 AM
>     >
>     >
>     > Hello Huu,
>     >
>     > use E1/SS7 signaling or if you MSC speak SIP, then use SIP.
>     >
>     > Thanks
>     >
>     > On Tue, Apr 13, 2010 at 11:46 AM, huu giang
>     <huugiang104 at yahoo.com </mc/compose?to=huugiang104 at yahoo.com>> wrote:
>     >
>     >
>     >
>     >
>     > Hi all,
>     >
>     > My Asterisk connect to GSM core network (connect directly to
>     MSC) through E1
>     > lines. What the kind of protocol is used ?. It is ISUP/SS7
>     protocol ?
>     >
>     > Thanks in advance
>     >
>     >
>     >
>     >
>     >
>     >
>     >
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