Have a pair for 2921's with CUCM 7.1(5). Each of the 2921's have a PRI to the PSTN and are configured as H323 gateways.
When users forward their phones to the PSTN there is no ring back on calls coming from the PSTN. I have found several articles but nothing current.
Some suggestions have been:
See http://www.cisco.com/en/US/products/sw/iosswrel/ps5013/products_feature_guide09186a0080080e2d.html#1015363 whch now appears to be a dead link.
Use the progress_ind alert command on the dial peer. This is not available on the 2921.
The enable fast start in the h323 configuration, which does not appear to be available.
Any other suggestions? I have attached what I believe to be the relevant sections of the config.
voice service voip
allow-connections h323 to h323
allow-connections h323 to sip
allow-connections sip to h323
allow-connections sip to sip
fax protocol t38 ls-redundancy 0 hs-redundancy 0 fallback none
h225 h245-address on-connect
modem passthrough nse codec g711ulaw
voice class codec 1
codec preference 1 g711ulaw
codec preference 2 g729r8
voice class h323 1
h225 timeout tcp establish 3
dial-peer voice 12 pots
description ** Outbound Local Calling **
progress_ind setup enable 3
progress_ind connect enable 8