IP Telephony and Phones

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I upgraded a 2801 router from 12.4(24)T6 to 15.1(3)T2 and SCCP SRST stopped working (I've also tried 15.1(4)M2). It works fine on 12.4, but with 15.1, the phones never register. Debug ephone detail produces no output at all. The config is pretty basi...

tfletcher by Level 1
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Hello All,Unable to make outgoing calls via voice gateway incoming calls working fine .. outgoing calls are getting disconnected with message :     Cause i = 0x80AF - Resource unavailable, unspecifiedI have attached the debugs for outgoing calls. Can...

Hi All,This is purely an FYI type post because I think it could be of help to some folks that might have experienced this without realizing the cause.I'm also posting it because any time I've described it to industry folks they say they've never hear...

Hi,I'm performing a migration from 5.1 to 8.6. Our customer has several MGCP gateways connected  against the CCM. IOS from gateways are 12.4.My question is, could we have problems between MGCP gateways and CCM 8.6 due an incompatibility between IOS v...

I just started at a company that is using CME at all the remote offices.  Although another department handles that, after spending several hours today troubleshooting a CME problem that ended up not being a network issue, I would like to start learni...

Hi I need to add a new site to an exisitng cluster which  means a new Region and Location. Can I add then during the day without effectng the devices?When I add a new Location do I have to re-sycnh bandwidth option and if so what is the effect on the...

iptuser55 by Level 6
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Resolved! CISCO SNR

I have a ccm 8.0.3 server and was trying to configure all the steps that were required , and in the mobile phone number, being in india i typed in +919711....... in the destination number, i tried making a call from a neighbouring phone on my desk ph...