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Some of our retailers (ISP's in most cases) are experiencing huge issues with their customer's SPA112/SPA122's locking up due to malicious SIP traffic from outside. To mitigate these issues, the best solution for us would be the ability to put the wh...
We have a scenario where certain SPA112/SPA122's are placed in a specific voice VLAN. For units in this VLAN, we want to change some provisioning parameters, such as SIP registrar, which is only available in the voice VLAN but not from the outside or...
We have a scenario where we want the incoming calls with auto answer set to be routed to the headset, but paging calls (via multicast) should route to the speaker. Is there any way of acheiving this? If it's possible to specify output device to use f...
...according to page 28 in the user guide here http://cisco.biz/en/US/docs/voice_ip_comm/csbpipp/ip_phones/user/guide/spa300-500-uc320w/SPA300-500-UC320W_UG_78-19372.pdf it's not supposed to be there. For the rest of the 50x-series and 9xx-series it'...
Hi,I'm having some issues with displaying "exotic" characters in the phone display of the SPA525G2. For the SPA50x- and SPA9xx-series I set the charset http-header to "ISO-8859-1". Characters above unicode 0x7F are escaped to their unicode equivalent...
Dan, In your experience, approximately how long is the delay when using TLS for SIP session? Trouble is we need to add a license to our SBC to enable TLS, if we're talking ~15second delay that solution is not feasible. But if we're talking a couple o...
Hi Dan, thanks for sharing your knowledge.The provisioning manual reads "If the Open format profile contains multiple occurrences of the sameparameter tag, the last such occurrence overrides any earlier ones. To avoidinadvertently overriding configur...
Thank you very much Dan for sharing your experiences, much appreciated!We have locked down the units as much as possible but the SIP DoS thing is still a problem. We'll give the port change a go and will try TLS also. The latter seem more like a real...
Hi John,Did you find any solution to this? I have a customer who wants to use DHCP vendor specific option 43 (instead of CDP or LLDP-MED) for use in an already existing network environment with phones from other vendors. I'm not finding information a...
Hi Alberto, any news on this? We've run into a related issue where the phone totally locks up if the first character in a field is an "exotic" character, compared to when it just does a bad interpretation if the character is present later in the sett...
