I am troubleshooting Cisco phone registration issues through a 3020 running 7.1.7 . My rulesets are only service based (TCP/UDP 5060, 5061, etc) and allow any application. Cisco TAC is telling me that ALG issues are interfering with registration. If I am allowing any application and using services only (and the traffic is hitting these rules), is SIP inspection or ALG still being applied to the traffic?
... View more