02-17-2010 10:20 AM - edited 03-15-2019 09:27 PM
I have a remote site that currently has about 30 IP Phones (7940, 7941, 7960, 7961, etc.) that I have call control and voice traffic going to/from our central site backhauled on a T1 Circuit.
I have a new wireless circuit available between these sites that is 25 Mbits but is only half duplex. My quesiton is will I run into significant voice problems if I backhaul the voice traffice over this new half duplex wireless circuit?
Any thoughts?
Jim
02-17-2010 11:22 AM
You should not have any problem.
Bandwith matters, not duplex.
02-17-2010 12:17 PM
Delay and jitter matter too. How much one-way delay does the wireless link introduce compared to your existing wired circuit? The recommended microphone-to-speaker delay is 150ms. Jitter above 40ms will also be noticable.
02-18-2010 12:05 AM
To be short and sweet, I'll say the following. It's not optimal but it'll likely work. For reference, I had a customer doing Voice over Satellite with multiple hops and retransmission points across the world and utlimately entering into an encrypted tunnel leveraging in Internet connection spanning about 10 states - the delay RTT was over 700 milliseconds. It wasn't always pretty and there were problems, but it worked.
No guarantees on anything, but just some perspective.
HTH - if so, please rate.
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