I have recently introduced a 57iCT at my home office. There are several SIP phones attached. Out of all the phones, the 57iCT is giving problems.
EXACT same configurations work well (registration credentials) on my 480i. However I have noticed that the 57iCT on my Asterisk logs, indicates that the extension is unreachable within 40-90 seconds after registration. One can make calls, but you cannot receive calls. Only after it re-registers, it will retain its link for about 10-20 seconds between which you can receive calls. So all in all... the "RE-registration" is set to 120 seconds, but within the registration/re-registration period, the phone can receive calls on the first 10-20 seconds only. I would have assumed that its a NAT issue -- however other phones on the network are perfectly fine. I've upgraded the firmware, downgraded the firmware, and with no results. Hopefully someone can provide me some insight. Thanks! Reza. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
