We have a Siemens Hicom Mod 80ex integraded with Cisco Callmanager. We are slowly phasing out the Siemens. All calls route through Cisco. Last week we had a problem with the cisco gateway that interfaces with the Siemens T1 Ties. Siemens cards were not seeing the gateway. Cisco had us reset gateway. After reset everything came up and worked fine. However now it seems the analog devices like fax machines credit card swipes from the Siemens make a connection when dial out and routing through Cisco to pstn then the line drops. If I use a analog port from Cisco vg224 the line stays up and works with no problems. I'm thinking the problem is with Cisco gateway . I checked all configuration in Siemens and nothing htere has changed. Sorry this is long. Any advice would be appreciated.