Only a third-generation wireless mesh product like the MD4000
family provides the high performance and low latency needed
by demanding
VoIP phone applications. Besides the
inherently high performance of MeshDynamics multi-radio
backhaul technology, additional specialized voice features
minimize delay and jitter These features insure that voice
is transported rapidly and efficiently across the network,
maximizing the number of voice calls that may be supported
while minimizing wasted bandwidth.
Besides the inherently high performance of MeshDynamics'
patent-pending multi-radio backhaul technology, additional
specialized voice features minimize delay and jitter. These
features insure that voice is transported rapidly and
efficiently across the network, maximizing the number of
voice calls that may be supported while minimizing wasted
bandwidth.
Validated VOIP Performance Tests underscore the superiority
of MeshDynamics MD4000 products over over VOIP over wireless
mesh solutions. Extensive testing has also been undertaken
in
underground mines using
Spectralink VOIP Phones.
The Spectralink phones operate deep inside the mine 12-18
hops from the wired internet connection. The phones were
mobile while active. The demonstration resulted in a
purchase order for our system integrator. [
Press
Release]
The Challenge of VoIP over WiFi: Moving packets through a WiFi network uses significant overhead. Combine this with the relatively small packets for VoIP that must be sent at regular intervals, (e.g. every 20 ms) and the overall system becomes increasingly inefficient. With more VOIP clients and as the VOIP packets traverse multiple hops, latency and jitter performance degrades further in single backhaul radio products - due to contention on the same backhaul channel. MeshDynamics multi-radio multi-channel backhaul ensures deterministic latency and jitter by eliminating the effects of both single radio backhauls and involuntary contention. Further, the MeshDynamics
VOIP concatenation engine ensures the timely delivery of VOIP packets.
VOIP concatenation : Since VOIP packets are small, inefficiencies related to transmitting small packets result in significant overhead. This adversely affects usable capacity. The Patent Pending MeshDynamics concatenation engine puts VOIP packets into a
"container" packet. Containers are shipped periodically much like a bus arrives and leaves as a bus station at regular intervals. Bulk transport of VOIP packets is thus more efficient. Latency/jitter is also better managed than if the VOIP packets were individually transmitted - where they would be contending with each other.
[Details]
Related Links:
1.
Wi-Fi
based Femtocell Extensions for the outdoor enterprise.
Extension of Femtocell coverage using mesh.
2.
VOIP and
VIDEO on a City wide scale MeshDynamics VOIP
Concatenation Engine explained..
