不喜勿插, 歡迎一齊再討論分享。
HKBN RTP Status:
Peer Call ID Duration Recv: Pack Lost ( %) Jitter Send: Pack Lost ( %) Jitter
203.80.89.139 13a68658875 00:00:42 0000002134 0000000000 ( 0.00%) 0.0000 0000001992 0000000000 ( 0.00%) 0.0004
1 active SIP channel
my-pbx*CLI> sip show channelstats
Peer Call ID Duration Recv: Pack Lost ( %) Jitter Send: Pack Lost ( %) Jitter
203.80.89.139 13a68658875 00:00:49 0000002465 0000000000 ( 0.00%) 0.0000 0000002322 0000000000 ( 0.00%) 0.0001
COMNET VOIP RTP STATUS
my-pbx*CLI> sip show channelstats
Peer Call ID Duration Recv: Pack Lost ( %) Jitter Send: Pack Lost ( %) Jitter
202.0.179.3 c27a9d8bdd6 00:00:11 0000000549 0000000002 ( 0.36%) 0.0000 0000000427 0000000000 ( 0.00%) 0.0047
1 active SIP channel
my-pbx*CLI> sip show channelstats
Peer Call ID Duration Recv: Pack Lost ( %) Jitter Send: Pack Lost ( %) Jitter
202.0.179.3 c27a9d8bdd6 00:00:15 0000000765 0000000002 ( 0.26%) 0.0000 0000000643 0000000000 ( 0.00%) 0.0083
1 active SIP channel
my-pbx*CLI> sip show channelstats
Peer Call ID Duration Recv: Pack Lost ( %) Jitter Send: Pack Lost ( %) Jitter
202.0.179.3 c27a9d8bdd6 00:00:21 0000001079 0000000002 ( 0.19%) 0.0000 0000000957 0000000000 ( 0.00%) 0.0088
1 active SIP channel
my-pbx*CLI> sip show channelstats
Peer Call ID Duration Recv: Pack Lost ( %) Jitter Send: Pack Lost ( %) Jitter
202.0.179.3 c27a9d8bdd6 00:00:26 0000001341 0000000003 ( 0.22%) 0.0000 0000001220 0000000000 ( 0.00%) 0.0072
1 active SIP channel
my-pbx*CLI> sip show channelstats
Peer Call ID Duration Recv: Pack Lost ( %) Jitter Send: Pack Lost ( %) Jitter
202.0.179.3 c27a9d8bdd6 00:00:41 0000002061 0000000006 ( 0.29%) 0.0000 0000001944 0000000000 ( 0.00%) 0.0033
1 active SIP channel
my-pbx*CLI> sip show channelstats
Peer Call ID Duration Recv: Pack Lost ( %) Jitter Send: Pack Lost ( %) Jitter
202.0.179.3 c27a9d8bdd6 00:00:45 0000002270 0000000009 ( 0.39%) 0.0000 0000002154 0000000000 ( 0.00%) 0.0015
1 active SIP channel
my-pbx*CLI> sip show channelstats
Peer Call ID Duration Recv: Pack Lost ( %) Jitter Send: Pack Lost ( %) Jitter
202.0.179.3 c27a9d8bdd6 00:01:58 0000005906 0000000043 ( 0.72%) 0.0000 0000005826 0000000000 ( 0.00%) 0.0022
1 active SIP channel
my-pbx*CLI> sip show channelstats
Peer Call ID Duration Recv: Pack Lost ( %) Jitter Send: Pack Lost ( %) Jitter
202.0.179.3 c27a9d8bdd6 00:02:27 0000007307 0000000066 ( 0.90%) 0.0000 0000007248 0000000000 ( 0.00%) 0.0049
可以見到一分錢一分貨，小弟用PCCW 200M FTTH
jitter HKBN < 20ms, COMNET > 20ms
Asterisk係每20ms 出一個UDP Packet, 問題就在此, jitter > 20ms 就要響sip.conf 開jitterbuffer解決呢個問題, 但會增加voice latency(因為要buffer填滿先send data, 我個setting就200ms jitterbuffer), 而且COMNET packet係有loss..... 香港去香港都有loss, 汗~~
HKBN VoIP, 試過通話中時, 人地可以再打入黎, 或者開多條line打出去, 換言之同時間可以多過一條channel於同一個number運作(但我無試最多有幾多條channel).. 但不支持sip info, 做2nd stage dialing 用inband時, asterisk server有機會認錯number
COMNET 支援sip info, 不過同時間只可以有一條channel行, 多過一條會將原本果條cut左, 或者人地打唔入黎。 |
發表於 2012-10-16 15:24
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