Hi List Members,<br><br><br>I do have a strange Problem in regards to SRST and i am running out of ideas what is causing the issue.<br><br>I have installed a CUCM 7.1.3-2000 in my Lab Environment for Study purposes with several IP Phones registered to it and a 2821 ISR Router with c2800nm-ipvoicek9-mz.124-24.T.bin.<br>
<br>After reading up how SRST works and how it is configured, i started immediately to test it out.<br><br>I have the following, SRST related, configuration on the 2811 Router.<br><br> call-manager-fallback<br> max-conferences 8 gain -6<br>
transfer-system full-consult<br> limit-dn 7960 2<br> ip source-address 172.16.7.254 port 2000<br> max-ephones 58<br> max-dn 192<br> keepalive 20<br><br>The Feature itself is working like a charm. As soon as the connection to the CUCM is gone, the IP Phones go in the Fallback Mode and register with the SRST Gateway.<br>
<br>Now here is the strange thing i do not understand.<br><br>As soon as this happens the Phones have a complete different configuration (e.g. the DN) as when they are registered to the CUCM.<br><br>As far as i understand, the IP Phones store the last configuration in Flash memory, and when they register with the SRST Gateway, the Gateways retrieves the configuration from the phones.<br>
<br>Now why do they have a complete different configuration? Shouldn't the configuration, which is active when registered to the CUCM, stored as "last configuration" ?<br><br>The configuration in SRST Mode is the configuration of a colleague of mine, which had a lab before i got the telephones.<br>
<br>This behaviour does not occur on all IP Phones. 2 7960 work like i would it have expected, they go in Fallback Mode and nothing changes.<br><br>All other IP Phones behave like mentioned above.<br><br>I have tried to do a Hardware Reset (plug the cable and put back in with the # pushed), but this only solved the issue partially. Now when they go in SRST Mode they have no configuration at all.<br>
<br>The 7960 have P00308010100 as App Load ID and Version 8.1(1.0). These 7960 are the ones which work without problems.<br><br>The 7962 have SCCP42.8-5-2SR1S and SCCP41.8-5-2SR1S and the 7911 has SCCP 11.8-5-2SR1S and all do not behave like expected.<br>
<br>So how can i fix this issue and what is causing it?<br><br>Sorry for the wall of text, i am quite new to the whole Voice World.<br><br>I hope a provided all information which are needed. If you need additional information, don't hesitate.<br>
<br>Thanks in advance for your time and help<br><br>Cheers,<br>Chris<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>