hi Everyone,        I had deployed two ASA5520 as active/standby HA mode. The standby firewall sometimes lost connected from the Monitor server.At that moment,  I can't access it via icmp and asdm. But it can be reachable again  a  few minutes later. I have no idea about it .         Do you know how deal with the  issue?         Thanks in advance !            ... View more

          Hi guys , I encounter one problem that  if 7937 can auto dial one number at one time point . My customer want to the phone can auto dial meetme number at 8:00AM everyday. Thank you for your reply ! ... View more

hi guys, I have encounter one problem about C4507R. when 4507's cpu is high ,the hsrp cutover. then customer complain the internet is disconect. So I want to config copp on 4507. but I don't know how to do it. Because it is one production network. Which one have config Copp ? Please share your experience or config file. Thanks a lot ! ... View more

hi guys, I had encounter one problem . I config ip phone expansion module that installed on 9951, then use the buttions as blf pickup feature. the first page buttions work well. But  the second page buttion don't prompt when one call incoming until you click the pages button. Customer complain this problem. Can you have one idea ? Thanks a lot ! ... View more

                   hi Everyone, Do you know 9951 use which port to request corporation direcotry on CCM ?I have two SSG Firewall between 9951 and CCM, I find that 9951 can't access corporation on CCM until open all port on FW. this is very danger . So I want to know which ports provide Corporation directory service on CCM . Thanks a lot ! ... View more

                   hi everyone ,I have use IPBLUE as 7970 make BLF call pickup ，but it no working. when one call incoming at BLF DN, the BLF Pickup iniator phone no indicator. please help me ! ... View more