Does latency of IPS inlide mode impact VoIP traffic?

[gseiler]

Hi, my customer wants to implement IPS in inlide mode in his network which also carries VoIP traffic. There are different infos on CCO about the latency. Can anybody tell if the latency will impact VoIP quality? Regards Guenther

[scottmac]

Latency per se will not have a negative impact on the VoIP traffic, unless it is (from end-to-end, i.e., the IPS latency + the "normal" network latency for the link) fairly extreme.

The usual killer is extreme variances in the latency ... usually handled by the "deJitter buffer" on the phones.

Good Luck

Scott