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Reply To: SDCCH dimensioning for HR environment



The user will not have to perform the call more than once to go through, even though the indicator SDCCH failure rate is “high”. Just take your experience as a reference : how many times do you have to push the “call” button to make or answer a call ? only once…

Those failures are counting the “automatic” RACH attempts of the mobiles, as well as ghost RACH, etc… If you don’t agree, then perform drive-tests and experience the SDCCH failures. You’ll see that it’ll never happen.

This threshold is always the same, whichever the network. I told you already… alcatel officially recommend a threshold of 20%.

Contact the RTAC for additional infos…