- This topic has 102 replies, 1 voice, and was last updated 16 years ago by mohit.
19th October 2002 at 06:14 #34715JamesGuest
Can anybody tell me about C2 signalling.Is it another name of R2 signalling or else.if anybody can provide me ITU-T specs no. for C2 signalling it will be a great help.26th March 2003 at 09:48 #34716c.kristhudass rabertGuest
r2 singnalling is call r2mf signalling, it is used for switching.
r2mf stands for “register 2 multi frequency”. The pstn port will support 32 channals 1st channal for
frame setting 16th channal for signalling.
so only 30 channals will get for subscribers traffic.1st April 2003 at 01:23 #34717Sunil KumarGuest
This kind Signalling System is little older than combare to C7/SS7.
In R2 You have to handle two kind of Signalling.
Line Signalling used used to hadle the SEIZURE and CLEARING of Circuits.Register-Takes care Subcriber Sigannls.
First Line Signalling after Seizyre Register Signalling will Start.2nd April 2003 at 04:41 #34718c.kristhudass rabertGuest
Can explain ss7 and cc7 briefly?
c.kristhudass rabert2nd April 2003 at 11:13 #34719Prabhakar vermaGuest
both mean the same thing…3rd April 2003 at 13:33 #34720Sunil KumarGuest
It should be mentined as SS7/C7 not CC7.
Both are same but,ANSI Standard will mention it as S7.
If you want to learn more about SS7 then just mail me your mail id.I will send some basic docs for you.4th April 2003 at 04:05 #34721c.kristhudass rabertGuest
Thanks for ur reply…
Thanks & regards
c.kristhudass rabert26th May 2003 at 07:42 #34722T.N.chaudharyGuest
Hi Sunil !
Please send me more basic concept about c7/ss7 in the following address.If you know more about the following then pls let me send.
1.What is asr(average seiz ratio)?
2.What is ber(Bit error rate)?
3.what is the Frequency range of opticle fibre?
4What is ABR?
With lots of thanks as advance.28th May 2003 at 05:35 #34723Balakrishnan S NaickerGuest
Hi kristhudass rabert,
Following link might help you.
The link http://www.iec.org/ contains very nice tutorials. Many of you people might be knowing it already.
If any of you knows any other tutorials for TMN, please let me know it.
Thanks.8th June 2003 at 14:17 #34724LeonardoGuest
We use R2 to link our company PABX and PSTN. I am new in these field. My question is, if I trace a R2 trunk and someone dials, I see something like; 8/5-1/7-A/3-5/A-etc. Is there a standard meaning to all of these numbers? I know these are the numbers being dialed and answered by the other end but I need to know the right meaning of each. like if I send 8, I should get a ???, sort of.
Thanks in advance.11th June 2003 at 15:02 #34725HarjeetGuest
All countries uses modified version of R2 according to their needs. The Indian version of R2 has the follwing signals:
Group I for sending digits (–>)
Group II for sending Sub cat.(–>)
Group A for Making Demands (11th September 2003 at 11:51 #34726navpreetGuest
sunil, pls send me some basics regarding SS7/C7 .
regards14th September 2003 at 10:12 #34727MuzammilGuest
R2 Signalling basically has a lot of variants. It usually varies from country to country. It has a lot of names like R2, R2 modified, CSMF (Compelled Sequence MF), R2MF, MF etc… (But not sure about C2).
A detailed description of signals are available on the following websites….
Hope this helps.
REgards.14th September 2003 at 10:21 #34728MuzammilGuest
Here are some of the basics of SS7. Hope this helps.
Regards.28th September 2003 at 08:09 #34729amberish trivediGuest
i want to calrify that in ss7 also 16 timeslot is for siganlling and r2 also 16 is for signalling then what is difference in between them.
as per my knowldege in r2 every traffic channel has its own signalling but as and as i read document ,i got confused.so pls help me out.it is very urgent to clarity about r2 siganlling.
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