So the 404 error is not fired by your device but by the SIP peer, isn't it ? Then you need to analyze configuration/logs of other side. Your call is rejected for a reason known to the peer administrator only. ... View more

It may or may not be bricked. Analysis requires advanced networking skills. You need to catch all packets sent by device during the cycle. It may disclose the current state of the device, so we can advise further steps to repair (if possible at all). Ask your network administrator for help with packet capturing . ... View more

Sorry, no one can help you to guess other's credentials. Ask system administrator for help.   ... View more

Well, you can communicate directly with the computers on the same subnet only. For communication with computer in another subnet, the router/gateway is required. Clear now? Gateway is on the same subnet by definition. What the gateway not on the same subnet is good for ? Remember - you can't communicate directly with computer not on the same subnet ...   ... View more

I check the link and my device serial number is not listed to pick correct firmware. You missed. CCQ170801LY fit into "Before CCQ181805KR" category, all firmware versions can be used.   Can I use 1.3.5 version? Yes, as long as you don't care caveats resolved in newer firmwares. Note not all bugs resolved are mentioned in release notes. ... View more

Unfortunately, no one can just guess correct configuration for particular environment.   Phone is using either SCSP or SIP protocol to communicate. Phone is registered to a server of VoIP operator. Phone is using a credentials to register. One or more extension number needs to be configured. Audio codecs and supplementary services may or may not require specific settings ...  You just need to know your operator requirements. Ask your VoIP operator for instructions (it assumes you know who's your VoIP operator - another fact no one can just guess).    OR   VoIP operator supports remote provisioning of SPA504G, You need to know no facts but URL of provisioning server. Even in such case - ask your VoIP operator for help. ... View more

Just configure it the same way you configured them 5 years ago.   Or I missed the issue ?     ... View more

Thanks Glenn, but you know - I didn't created the content of the article, so the honor is not mine. As already, this article has been created by Patrick Born, but the original document has been deleted for no apparent reason. I just recreated it. ... View more

Impedance is not the only important setting. Even input/output gain, DTMF playback level and length and even others needs to be configured according operator requirements.  So many permutations for try&test method. Ask your operator for specification. I have tried to setup a syslog to debug using email Syslog and debug of Voice application supports no email method at all. Debug and syslog Messages from SPA1x2 and SPA232D ATA   Unrelated note - if you wish to use G711a codec only, don't leave other codecs enabled. ... View more

It's feature of "Dial Plan". Read Explaining Dial Plan, search for Hot Line. ... View more

Of course. ATA 190-SC is designed for Cisco Spark Calling service only. Its neither bug nor defect. Its the purpose of such model. ... View more

@Howard Wittenberg wrote: I believe calls only use a single port number for a given call Mostly true. But I'm unsure its true for suspended->resumed calls and for calls with codec renegotiation initiated by peer during the call.  So I don't bet on it ... ... View more