t j f j ` Z l Z Z „ ; m e k Z l d h“ ? : Z a k i h _ f i h j Z \ k l j Z g b k e _ ^ i j _ ^ \ i b ] e Z k m \ h ^ h [ j y \ Z g _ _ h [ o h ^ b f b l _ c g h k l h k d b l, .

  • Published on
    06-Feb-2018

  • View
    222

  • Download
    9

Transcript

( ) , , . 10 . . : 1. - , , / . 2. - , . 3. - . , . 4. - . : 10 . : , : . , . " " 15, . 3, . SIP . SS7, 2048 kbps . : SIP / 1 (SS7). , : 1. SIP 15 . 2. SS7 1 ( ) . 3. . : , . , : 1. 1 /SS7 / : ITU-Blue - 2048 Kbit/s / ITU-T G.703 / - HDB3 / ITU-TG.703 / - ITU-T .41 - 75 /120 / ITU-TG.703 / - ITU-TG.703 - : - ITU-TG.823 2. SIP - 355 06.08.2015 . , 1 2 . 3. , . , . . 4. , . . 5. , . : 1. - 24 , 7 . 2. . - - 8 ; - - 12 ; - - 7 . 3. - 00:00-06:00 . 4. - 30 / . 5. - - , . , : 1. 01675/21.10.2010 . . 2. .164, - CLIR. : 1. / . 2. , . : 1. , . 2. , . . 356/23.06.2016 . 550/20.10.2016 . ( ), , : 1. , , ( / ) [1], , , : ./ . / . ./ / . ./ [1] , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , . 2. , , , , ( / ) : - 01.11.2016 . - 0,0015 ./ . - 01.01.2019 . - 0,0014 ./ . 3. , , , , (CLI) : - 01.11.2016 . - 0,0015 ./ . - 01.01.2019 . - 0,0014 ./ . ./ ., ( ). 01.11.2016 . 31.12.2016 . 0,0015 0,0015 01.01.2017 . 31.12.2017 . 0,0015 0,0015 01.01.2018 . 31.12.2018 . 0,0015 0,0015 01.01.2019 . 31.12.2019 . 0,0014 0,0014 01.01.2020 . 550/20.10.2016 . 0,0014 0,0014 1 I. / , : 1. / : ) / . ) / . ) DTMF / . ) Call Forwarding, CLIP CLIR . ) . ) . ) ISUP release cause Header SIP . ) CDR . ) , , / . 2. : 2.1. (one-way delay), , 5000 . II ITU-TG.114, 150 ms. . , SBC. , RTCP : - ( ). - ( ). 2.1.1. / - 2 ( ), 5 ( ) , . 3 , . 40 ms. , . 2.1.2. . 2.1.1. . 3 . 5 % 24 , , . , , 1 . . 2.1.2. . 2.2. (pt delay variation), ( ) (quantile) ( ITU-TY.1540, . 6.2.4). ITU-TY.1541, 50 ms 99,99 % . . , SBC. Packet delay variation , RTCP, RTP . : - ( ). - ( ). 2.2.1. / , - 2 ( ) 5 ( ) , . 3 . , . 2.2.2. . 3 . 5 % 24 . , , . 2.3. (IP Pt Loss Ratio, IPLR), IP IP ( c ITU-TY.1540, . 6.4). ITU-TY.1541, (IPLR) - 0,1%. . , SBC. , RTCP, RTP . : - ( ). - ( ). 2.3.1. / , - 2 ( ) 5 ( ), , . 3 . , . 2.3.2. . 3 . 5 % 24 . , , . 3. . I . II. : , , : 1. (Ansr Seizure Ratio, ASR), , , ( ITU-T .425, . 1.3). ASR 50%. , . 3 . SIP IETF ASR SER /session establishment ratio/ % 200 INVITE INVITE , , . , . 3 . ( ) ASR. 2. (Network Effectiveness Ratio, NER), , , , ( ITU-T .425, . 1.5). NER 95%. NER , Release Cause Values: 1, 16, 17, 18, 19, 20, 21,22, 28, 31, 50, 53, 55 SIP. SIP IETF NER SEER /session establishment effectiveness ratio/ % 200 , 400, 486, 600 603 INVITE INVITE , , . ( ) NER. , . 3 . 3. (R- ), ITU-T G.107. ITU-TG.109, R- - 70. . , SBC. packet loss, packet latency and packet jitter, codec, SIP RTCP protocol RTP . : - ( ). - ( ). 4. . II. Internet Engineering Task Force (IETF - ). 5. SIP ISUP ITU-TQ. 1912.5 RFC3398.

Recommended

View more >