I've got a sip phone configured to connect to the OBI, but as of ~2 weeks ago outgoing calls started failing.
I can still make outgoing calls from regular phones connected to the phone port.
Same here Linksys SPA942. Receives incoming calls just fine but outgoing now gets fast busy and displays "
Invalid Number". I noticed in call logs for calls placed from the analog phone port a 1 is now placed in front of all outgoing calls, this was not the case prior to the new firmware. I have tried inserting a 1 in front of outgoing calls on the SPA942 but same result "Invalid Number". If anyone has helpful hints or figures this out please let me know.
Check this topic out. http://www.obitalk.com/forum/index.php?topic=13489.0 Probably can skip to page 3
There does not seem to be a solution yet, but if enough of us get together maybe either they will fix it or we can find a work around.
Try forcing a specific vocoder like the G711u at your SIP phone and see if that solves your issue.