Very poor softphone voice quality even on LAN
I'm experimenting with using SIP and softphones on our LAN (and eventually WAN.) I'm amazed at how variable the quality is even on a lightly-loaded LAN. I have two test Windows 2000 machines connected to the same HP Procurve
4104GL switch (which is supposed to have QOS support enabled by default) at 100mbit with a softphone loaded on each. Conversation is great until one of the machines does almost any kind of network access. Then there is immediate "crunchiness" or skipping of audio. I've tried a variety of softphones (eyeP media, SoftJoy SJPhone) and codecs (G.729, G711ulaw) but all seem to have this problem. Am I missing something with configuring QOS with Windows 2000 Professional itself? I tried enabled 802.1p support on the NIC's but this didn't help either. read more and respond »Posted 5 years ago by Ed M in Voice-Over-IP
