TL-SG105 - how can I prioritize voice/SIP (GoogleVoice to Obihai200)?
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Hardware Version :
Firmware Version :
ISP :
In my wife's mini-office, the landlord provides an ethernet socket to its 100Mbps network that goes to the internet.
I am going to connect that to my new TL-SG105 (Version 3).
I am also going to connect to the TL-SG105 the following:
a) Our Obihai200, which connects via internet to GoogleVoice and brings GoogleVoice to our desk phone, and
b) An old router that connects to two PCs, a printer, etc.
[NOTE: We cannot put the Obihai200 behind the router - that stopped working when GoogleVoice changed its technology two weeks ago.]
QUESTION: How do I tell the TL-G105 to prioritize voice? I have no idea how to set QoS.
Or should I not bother?
Thanks.
Hi, if you want to make the voice traffic transfer with a higher priority, the packets of voice traffic need to carry the priority field and has a high value. DSCP and 802.1p is the priority field. For example, the following packets has DSCP field and the value is 0x00.
TL-SG105v3 supports QoS, it can identify the DSCP and 802.1P field for the packets, then forward the packets with different priority accrding to the value of DSCP/802.1p.
PRI field in 802.1Q TAG frame: Lowest=1, 2; Normal=0, 3; Medium=4, 5; Highest=6, 7
DSCP field in IP header: Lowest=0-15; Normal=16-31; Medium=32-47; Highest=48-63
The above packet use 0x00 as DSCP, so has the Lowest priority. So if you want your voice traffic get the high priority, the voice packets need to has a high value for DSCP/802.1P.