RV220W: VoIP phones losing registration and staying offline
Hi all,
VoIP phones connected to a Cloud PBX provider are losing their registration to the Cloud PBX. The router in question is an RV220W.
This started occurring when more phones were added to the site. Phones will boot up, register and then lose their registration within a minute or two.
A larger number of phones of the same model with identical config are connecting through a Cisco 871 router without issues so we know the phones and their configs are good.
SIP ALG is disabled.
The UDP session timeout duration is 120 secs. The phones are set to re-register every minute.
What could be wrong?
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%LINK-I-Up: gi15, aggregated (3)
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VoIP Phones - Testing Latency, Jitter, and Packet Loss
I am having big problems with my VoIP phone connection and I'll try to lay it out clearly here.
The main telephone system resides at Location A (static IP address - see below - xxx.xxx.206.19), which has a network connection of 50MB down/20MB up (i.e., very fast). The VoIP phone configured for that system resides at Location B, which has a network connection of 10MB down/1MB up (i.e., also fast, or at least fast enough "on paper" for a quality VoIP connection). The LAN at Location A uses an Airport Extreme router, which does not have QOS or EF capability. The LAN at Location B uses a D-Link DIR-655 router which does have QOS that is configured properly to direct all traffic to the VoIP phone's IP address.
The VoIP phone at Location B is having intermittent call quality problems with skipping of words, hollowing out noises, jittery conversations, etc. All the inquiries I've made to the ISPs and phone system manufacturer (ESI) suggest that my base Internet speeds are not the problem.
I'm told, instead, that the problem might be latency, jitter, or packet loss between Location A and Location B. This leads to several questions:
(1) Is there any Mac software that can test latency, jitter, and packet loss? I've looked at Network Utility and it seems to only measure a few things.
(2) Does anyone see anything in the following Traceroute and Ping results (done twice from Location B to Location A) that looks problematic to VoIP quality?:
Traceroute:
First run: Traceroute has started…
traceroute to xxx.xxx.206.19 (xxx.xxx.206.19), 64 hops max, 72 byte packets
1 alfirving (192.168.0.1) 0.569 ms 0.363 ms 0.302 ms
2 10.72.28.1 (10.72.28.1) 27.567 ms 18.161 ms 22.288 ms
3 70.125.216.150 (70.125.216.150) 9.841 ms 10.346 ms 9.497 ms
4 24.164.209.116 (24.164.209.116) 11.042 ms 8.298 ms 9.433 ms
5 70.125.216.108 (70.125.216.108) 21.068 ms 20.657 ms 12.045 ms
6 te0-8-0-2.dllatxl3-cr01.texas.rr.com (72.179.205.48) 11.154 ms 11.540 ms 24.495 ms
7 107.14.17.136 (107.14.17.136) 11.994 ms 14.217 ms 15.816 ms
8 ae-3-0.pr0.dfw10.tbone.rr.com (66.109.6.209) 14.566 ms 32.670 ms 15.947 ms
9 ix-0-3-2-0.tcore2.dt8-dallas.as6453.net (209.58.47.105) 11.647 ms 12.260 ms 12.386 ms
10 if-2-2.tcore1.dt8-dallas.as6453.net (66.110.56.5) 10.023 ms 12.285 ms 12.338 ms
11 209.58.47.74 (209.58.47.74) 17.641 ms 16.741 ms 16.372 ms
12 0.ae2.xl3.dfw7.alter.net (152.63.97.57) 11.584 ms 12.315 ms 12.890 ms
13 0.so-6-1-0.dfw01-bb-rtr1.verizon-gni.net (152.63.1.90) 13.812 ms
0.ge-3-0-0.dfw01-bb-rtr1.verizon-gni.net (152.63.1.17) 18.831 ms
130.81.23.164 (130.81.23.164) 14.189 ms
14 p14-0-0.dllstx-lcr-05.verizon-gni.net (130.81.27.40) 14.561 ms 13.621 ms 15.544 ms
15 * * *
16 static-xxx.xxx.206.19.dllstx.fios.verizon.net (xxx.xxx.206.19) 23.125 ms 24.136 ms 22.411 ms
Second run: Traceroute has started…
traceroute to xxx.xxx.206.19 (xxx.xxx.206.19), 64 hops max, 72 byte packets
1 alfirving (192.168.0.1) 0.603 ms 0.420 ms 0.324 ms
2 10.72.28.1 (10.72.28.1) 40.494 ms 26.625 ms 14.152 ms
3 70.125.216.150 (70.125.216.150) 9.431 ms 9.660 ms 9.018 ms
4 24.164.209.116 (24.164.209.116) 16.293 ms 12.339 ms 19.252 ms
5 70.125.216.108 (70.125.216.108) 15.801 ms 11.438 ms 12.068 ms
6 te0-8-0-2.dllatxl3-cr01.texas.rr.com (72.179.205.48) 23.221 ms 30.459 ms 17.519 ms
7 107.14.17.136 (107.14.17.136) 14.611 ms 15.696 ms 15.775 ms
8 ae-3-0.pr0.dfw10.tbone.rr.com (66.109.6.209) 17.643 ms 14.812 ms 16.294 ms
9 ix-0-3-2-0.tcore2.dt8-dallas.as6453.net (209.58.47.105) 11.169 ms 12.374 ms 9.849 ms
10 if-2-2.tcore1.dt8-dallas.as6453.net (66.110.56.5) 16.453 ms 12.168 ms 12.384 ms
11 209.58.47.74 (209.58.47.74) 18.015 ms 14.867 ms 16.432 ms
12 0.ae2.xl3.dfw7.alter.net (152.63.97.57) 11.471 ms 11.993 ms 12.395 ms
13 0.ge-6-3-0.dfw01-bb-rtr1.verizon-gni.net (152.63.96.42) 14.077 ms 29.153 ms
0.ge-3-0-0.dfw01-bb-rtr1.verizon-gni.net (152.63.1.17) 17.962 ms
14 p14-0-0.dllstx-lcr-05.verizon-gni.net (130.81.27.40) 14.629 ms 12.297 ms 12.839 ms
15 * * *
16 static-xxx.xxx.206.19.dllstx.fios.verizon.net (xxx.xxx.206.19) 24.976 ms 22.170 ms 22.376 ms
Ping:
First Run: Ping has started…
PING xxx.xxx.206.19 (xxx.xxx.206.19): 56 data bytes
64 bytes from xxx.xxx.206.19: icmp_seq=0 ttl=242 time=22.814 ms
64 bytes from xxx.xxx.206.19: icmp_seq=1 ttl=242 time=24.621 ms
64 bytes from xxx.xxx.206.19: icmp_seq=2 ttl=242 time=24.711 ms
64 bytes from xxx.xxx.206.19: icmp_seq=3 ttl=242 time=24.109 ms
64 bytes from xxx.xxx.206.19: icmp_seq=4 ttl=242 time=23.336 ms
64 bytes from xxx.xxx.206.19: icmp_seq=5 ttl=242 time=25.644 ms
64 bytes from xxx.xxx.206.19: icmp_seq=6 ttl=242 time=27.755 ms
64 bytes from xxx.xxx.206.19: icmp_seq=7 ttl=242 time=25.135 ms
64 bytes from xxx.xxx.206.19: icmp_seq=8 ttl=242 time=22.443 ms
64 bytes from xxx.xxx.206.19: icmp_seq=9 ttl=242 time=24.635 ms
--- xxx.xxx.206.19 ping statistics ---
10 packets transmitted, 10 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 22.443/24.520/27.755/1.448 ms
Second Run: Ping has started…
PING xxx.xxx.206.19 (xxx.xxx.206.19): 56 data bytes
64 bytes from xxx.xxx.206.19: icmp_seq=0 ttl=242 time=27.183 ms
64 bytes from xxx.xxx.206.19: icmp_seq=1 ttl=242 time=24.629 ms
64 bytes from xxx.xxx.206.19: icmp_seq=2 ttl=242 time=22.511 ms
64 bytes from xxx.xxx.206.19: icmp_seq=3 ttl=242 time=39.620 ms
64 bytes from xxx.xxx.206.19: icmp_seq=4 ttl=242 time=26.722 ms
64 bytes from xxx.xxx.206.19: icmp_seq=5 ttl=242 time=23.183 ms
64 bytes from xxx.xxx.206.19: icmp_seq=6 ttl=242 time=25.171 ms
64 bytes from xxx.xxx.206.19: icmp_seq=7 ttl=242 time=24.412 ms
64 bytes from xxx.xxx.206.19: icmp_seq=8 ttl=242 time=23.837 ms
64 bytes from xxx.xxx.206.19: icmp_seq=9 ttl=242 time=23.785 ms
--- xxx.xxx.206.19 ping statistics ---
10 packets transmitted, 10 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 22.511/26.105/39.620/4.713 ms
(3) Any other ideas on what my call quality problem might be, or how I can tweak it? For example, would putting a DIR-655 router at Location A and enabling QOS really make a difference?
Thanks to everyone, and I hope this is not too long or difficult to understand.Hey thanks for your reply Yeah im only getting 1 ro sometimes 2 bars reception so hopefully the antenna will beef things up but I think it is what it is perhaps.
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Dear Sir
Subject: Cisco ip
phone 9971 registration failed
with CME 8.6 on WAN
I have a WAN simulation with one Cisco2811 router one Cisco1841 router (connected with fast Ethernet interface) plus one layer 2 switch.
I upgraded the 2811 IOS to 15.4M and installed CME8.6, when we tried to add 9971 sip phone If the traffic goes throw LAN (Same subnet- directly from switch to 2811) everything is fine and the SIP phone (9971) added with no problem but when I change the subnet and traffic goes throw WAN
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