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what is c2 signalling

Viewing 15 posts - 1 through 15 (of 103 total)
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  • #34715 Reply
    James
    Guest

    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.

    #34716 Reply
    c.kristhudass rabert
    Guest

    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.

    #34717 Reply
    Sunil Kumar
    Guest

    This kind Signalling System is little older than combare to C7/SS7.

    In R2 You have to handle two kind of Signalling.

    1.Line Signalling
    2.Register 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.

    #34718 Reply
    c.kristhudass rabert
    Guest

    hi sunil,

    Can explain ss7 and cc7 briefly?

    Thanks

    c.kristhudass rabert

    #34719 Reply
    Prabhakar verma
    Guest

    both mean the same thing…

    #34720 Reply
    Sunil Kumar
    Guest

    It should be mentined as SS7/C7 not CC7.

    Both are same but,ANSI Standard will mention it as S7.

    Rgds

    Sunil

    If you want to learn more about SS7 then just mail me your mail id.I will send some basic docs for you.

    sunil_almnthat@yahoo.com

    #34721 Reply
    c.kristhudass rabert
    Guest

    Hi sunil,

    Thanks for ur reply…

    Thanks & regards

    c.kristhudass rabert

    #34722 Reply
    T.N.chaudhary
    Guest

    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.

    #34723 Reply
    Balakrishnan S Naicker
    Guest

    Hi kristhudass rabert,

    Following link might help you.
    http://www.iec.org/cgi-bin/acrobat.pl?filecode=135

    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.

    #34724 Reply
    Leonardo
    Guest

    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.

    #34725 Reply
    Harjeet
    Guest

    Hi Leonardo,
    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 (

    #34726 Reply
    navpreet
    Guest

    hi

    sunil, pls send me some basics regarding SS7/C7 .

    regards

    Navpreet_khera@yahoo.co.in

    #34727 Reply
    Muzammil
    Guest

    Hi,
    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….

    http://www.pulsewan.com/data101/cas.pdf
    http://www.pulsewan.com/data101/cas_basics.htm
    http://www.sunrisetelecom.com/technotes/TEC-GEN-2B-MFCR2.pdf

    Hope this helps.

    REgards.

    #34728 Reply
    Muzammil
    Guest

    Navpreet,
    Here are some of the basics of SS7. Hope this helps.

    http://www.ss7.net/
    http://www.ss7.com/index.cfm?
    http://www.c7.com/ss7/ss7_tutorials.htm
    action=proses1&ID=10
    http://www.pt.com/tutorials/ss7/

    Regards.

    #34729 Reply
    amberish trivedi
    Guest

    hi
    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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