Hi ,Please let me know the error message you receive when dialling the number ?If forward all  Voice mail check box is checked ? uncheck that .

Hi ,Configure AS5400 with Codec preference , So G711ulaw can be configured in Voice class Codec with first preference or specify codec in respective Dial-peer.So that high priority can be used ..http://www.cisco.com/en/US/docs/ios/12_3/vvf_r/vrg_c3_p...

Hi,The CIPC 2.1.4 didn't support for windows 7 32 bit.CheersGKN

Hi ,Please check the below links for your querieshttp://www.cisco.com/en/US/docs/ios/12_3/vvf_c/cisco_ios_h323_configuration_guide/old_archives_h323/4gwconf.html#wp1038442http://www.mycisco.biz/en/US/docs/ios/12_1/termserv/configuration/guide/dcdchan...

Hi,It was due to network reachability issues.Try configuring the IP and TFTP address statically for the IP PhoneThanksGKN