callmanager to unity tapi bandwidth

[rbradfield]

I have a temporary situation where the Callmanager will be on a different site to the, IP phones, PSTN gateway and the Voice mail/callcentre server.

I need to know what sort of bandwidth the Tapi (TSP) interface between the callmanager and the voice mail takes. I have never bothered about this before because normally thy are co-located on the same site.

by the way there are only 40 ip phones and one 30 isdn channel pstn access

anybody ever measured this

thanks

[sbilgi]

Check here :

http://cisco.com/en/US/products/sw/voicesw/ps2237/products_tech_note09186a0080180030.shtml

[rbradfield]

I have already seen this url. it talks about unity and exchange bandwidth not unity and callmanager