If you have cisco image of the Phone, load that image, it will get to default cisco. I have second phone with no customization. How I can fetch image from it ? Now, I have image - either fetched in previous step or taken elsewhere. How I can load it to the customized phone ? It's not necessary to describe step by step. Just major hints. Thanks. ... View more

Don't Shoot the Messenger. Cisco can help. May be it will be willing to help. Contact Cisco support ... Otherwise - you still have your lab working as yesterday ... ... View more

Firmware is, like other software, copyrighted material. Only Cisco (and subjects with Cisco's approval) can distribute it ... ... View more

It's not the only useless embedded URL I'm blocking. My filter blocks also:   https://app-static.turtl.co/embed/turtl.embed.v1.js and https://www.cisco.com/web/fw/m/metrics.min.js   I'm also blocking HTML page elements with class=.footer-social-container and class=.lia-user-avatar-message   All those wastes a lot of resources and causes page load delays (not speaking about severe privacy issues related to some of them). Cisco seems not to care - I reported some of them long time ago with little or no feedback. Fortunately, skilled user can solve it by self.       ... View more

It doesn't sound like dial tone. No dial tone mean "not ready to accept dialing". Assumed cause is - phone is not registered to a VoIP provider. Probably because phone is not configured at all. Unfortunately, it's nothing we can guess in full. Well, we may guess IP address of proxy if you will disclose name of the provider you are using. But no way to guess name and password. Unless you know credentials, you should contact VoIP provider for help. ... View more

SPA112 pre-configured for particular provider may be plug&play. Retail unit have no chance to know which provider (there are many thousands VoIP providers worldwide)  provide service to you. At least IP address of proxy of your VoIP provider, name and password needs to be configured. Particular VoIP pro0vider may have other requirements as well. Follow providers documentation.   But you said: if i try to call any other number it only starts the call, and then becomes silent. "starts call" - I assume it mean you dialed a number. It mean you got dial tone first. True ? I'm asking because "dial tone" mean "phone has been successfully registered to VoIP provider". It in turn mean phone have basic configuration of VoIP. ... View more

Just note that both @Maren Mahoney and @Ratheesh Kumar assumes you have CUCM with supported phone. Unfortunately, this thread has been originally created in Feedback Forum and moved to this community by a moderator with no knowledge of your environment. If you have CUCM with unsupported phone (connected as generic third party SIP device)  or you have no CUCM at all, answers above may not apply for your environment - so don't be confused. ... View more

Power and network connection is not enough. VoIP part needs to be configured as well. But you decided to keel secret all details, so it's hard to advise. As a blind shot - you have dial tone, but no once once dialed. I suspect NAT or firewall influence.   ... View more