We have problem as Existing Network
SCCP Phone <-->CUCM Cluster<---> H323 Centrer GW <----> H323 GW. FXS<---> Analog Phone.
I try to Route number to H323 GW at center and On H323 GW Center will have route to next H323 GW .
As i check during call from SCCP Phone it look like it try to connect to the Last FXS Port but It cannot
On SCCP Phone it wait long time till it give busy tone.
I already configure
voice service voip
allow-connections h323 to h323
no h225 timeout keepalive
AS it have dial peer on H323 GW Center point to H323 GW with FXS.
What Should i check why it cannot connect ?