[cisco-voip] Mostly used VoIP Features

[Guru Chakravarthy]

hi all,
We are working on a Cisco VoIP simulation project in
our company and are trying to figure out which
features in VoIP are being widely used and which are
seldom used.

I would like to get some input on these features, and
how often they are used and how essential they are in
your deployments? 

1. SRST 

2. Cisco Multiservice IP-to-IP Gateway (IPIPGW)
feature

3. MGCP Profiles


Your inputs are much appreciated. 
Thanks
Guru

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