Vestalink Call Quality
lburgguy:
I've had Vestalink for a few weeks now and I'm going to cancel. They offer a 30 day money back gaurantee so I am going to take them up on that.
Thing is, call quality is not what it was with GV and the latency is just enough to make the conversation difficult. Last night I made a call and the CID showed up on the person's phone as some number from a business. Not to mention a few times when the service 404ed on me. It's not ready for prime time.
I just signed up for PhonePower but I swear I can't figure out how to set it up on my Obi100.
KAura:
The nice thing about PP is they are 24/7 support via their webpage.
The 404 error -- prob VL, however, the CID error is due to the receiving
station pulling from a database that hasn't been updated yet for CNAM.
PCSguyMD:
I initially thought the call quality with Vestalink wasn't the greatest either, but then I noticed when looking at the Obi call status page (during a call via the Obi IP address directly or via Obitalk expert config) that incoming and outgoing calls were defaulting to the G.729 voice codec, which is worse than the G.711u codec. I simply went into the expert configuration and disabled the G.729 voice codec, and now all my calls default to G.711u, which is the landline PSTN codec I believe. All my calls have been sounding GREAT now with Vestalink!
I'm not sure why Vestalink was defaulting to G.729 since my cable modem connection is great with plenty of up/down bandwidth. Anyway, try disabling the G.729 codec first!
Quote from: lburgguy on April 03, 2014, 05:17:45 am
I've had Vestalink for a few weeks now and I'm going to cancel. They offer a 30 day money back gaurantee so I am going to take them up on that.
Thing is, call quality is not what it was with GV and the latency is just enough to make the conversation difficult.
...
DrewMan:
Thanks, PCSguyMD, for the tip. Seems to be better quality.
BigJim_McD:
Thanks PCSguyMD.
I had noticed the same thing looking at "Call Status" of live calls and comparing to "voip.ms" calls. I found that all Vestalink incoming and most outgoing calls defaulted to the G729 voice codec. All incoming and outgoing calls on voip.ms defaulted to G711u voice codec.
Following your lead, I used OBiTALK Expert Configuration Tool to disable the G729 Codec. Now all my Vestalink calls and voip.ms calls default to G711u and the Vestalink audio quality has improved.
-- Specifications --
Codec BitRate Bandwidth (Kilobits)
G729a 8 Kbps 31.2 Kbps Moderate Quality
G711 64 Kbps 87.2 Kbps Better Quality
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