OT : user in our Building can't heare the user in the other

Hi GS
i have a problem here and i need your sugession
this is the senario

iptuser(our Building)--------access
switch1----corswitche1----------------firewall--------coreswitch2---------acess
switch2------ iptuser(otherbuilding)

The unified Communication conected to coreswitch1

coreswitch1 connecetd to firewall by Fiber it is end 10.20.91.100 the
firewall end 10.20.91.105
My responsability till only coreswitch1 and there is seperated team to the
firewall coreswitch2

ipt user(our Building) can heare each other
ipt user (other Building ) can heare eah other
ipt user (other Building ) can heare ipt(our Building)
ipt user (our Building) can't heare iptuser(othe Building)

voice vlans are in access switch 1 and coreswitch 1 vlan 230
voive vlan are in acce switch 2 and coreswitch2 vlan 111
any idea
thanks

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Received on Wed Jun 22 2011 - 23:07:07 ART