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Recent content by hossam.algewely

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    zigee or sensor network

    Hya Guys, For any info about ZIGBEE , reffer to the famous member Omara007 , he is the best guy in ZIGBEE and he did his Master Degree in it
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    NGN topology, looking for any info

    Re: NGN Here is a nice white paper about NGN and PSTN you can also try the site of ITALTEL , which is now top rated in Europe for NGN
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    SS7 message transfer Part 3 (MTP3) - User Adaptation Layer (M3UA)

    Re: SIGTRAN This the most Popular RFC for the M3UA which is an important part of the SIGTRAN
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    How a 0800(freephone) call is routed?

    Hi, Basically , there are many types of Toll Free Numbers Domestic TF DTFN International TF ITFN Universal TF UIFN When DTFN or ITFN number is dialled , it is routed to the IN via Tandem switches to be translated into what we cal a Down Stream Number , this number can be a normal PSTN number...
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    Looking for ebooks to learn CCVP

    Re: CCVP CCVP is 5 exams CVOICE CIPT IPTT GWGK QOS I have them all , you can find them on www.sadikhov.com/forum
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    guide to start ethical hacking

    a very detailed tutorial is available on 7 cd's downloadable from emule
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    Do we need to convert the voice from microphone while sending over the LAN?

    Re: VOICE OVER LAN of course you need to , and DSP's on routers and IP phones do this job using codecs like: G.711 , G.729 ,....
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    Microwave Link Design Tools help

    Hi guys I have got the microwave link design toll called: Pathloss 4.0 , the problem is after installing all modules are dimmed , if any one has seen this problem please help. Also , i got the tool called : ATDI HertzMapper , if any one has documentation for it please help
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    Microwave Link Design Tools

    microwave link design Hi guys I have got the microwave link design toll called: Pathloss 4.0 , the problem is after installing all modules are dimmed , if any one has seen this problem please help. Also , i got the tool called : ATDI HertzMapper , if any one has documentation for it please help
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    Question regarding C7 Signalling...

    here is the best book about this subject: Signaling System No. 7 (SS7/C7) Protocol, Architecture , and Services you can find it on the forum and on emule
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    Looking for resources about Microwave Link design

    Re: Microwave Link yes , exactly , i mean digital point to point microwave links , which are used in mobile networks as atransmission backbone between BTS's and BSC's and MSC's
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    Looking for info about H.323 and SIP

    Re: description about SIP the both are session layer protocol, the role of all session layer protocol is to setup, maintain and tear down sessions, and they do not deal with the voice itself but they deal with signaling information associated with voice in order to deliver voice packets...
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    How audio chat over LAN differs from VoIP ?

    Re: VOICE OVER LAN yes that's right , and main issue is the bandwidth of the ethernet LAN is 100Mbps , which is very huge in comparison with VoIP requirements, so , no Quality of Service QoS is needed , and as you are not going to pass through routers , so no session layer should be invoked...
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    I have a question about TCP/UDP!

    one of the most famous applications for UDP is VoIP, VoIP uses a transmission protocol called RTP "Real time transport protocol" which constructs packets based on UDP , in order to be very fast and real time , also retransmission and other acknowledgement techniques are insignificat with voice
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    Looking for resources about Microwave Link design

    I am in a bad need to any resources about microwave link design , please help

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