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After several hours trouble shooting, Brandon with Cisco TAC was able to fix this problem.I just want to post to save someone else time. It is an EZVPN setup from UC540 to SR520 with one 7962 phone behind SR520.SCCP version 17 was negotiated when pho...
UC 540 has one FXO and one SIP trunk. Incoming calls on FXO are pointed to AA extension 500. If you press 4 during AA, it is supposed to use SIP trunk to dial external cell phone. External call transfer is enabled and 9 prefix is configured before ce...
These are the following configuration changes that Brandon made to get it to work.**************************Steps to get working:****************************crypto ipsec client ezvpn EZVPN_REMOTE_CONNECTION_1 connect auto group EZVPN_GROUP_1 key XXXX...
This looks like same bug. Softphone works because it negotiated a lower version of SCCP than 17.Version 17 will not work with NAT and EZVPN.You will have to disable NAT on 877 for traffic destined for UC520.You will also have to configure VPN on 877 ...
SR520 is running 12.4(20)T5. UC540 is running 15.0(1)XA2. I initially configured with CCA 2.2(5) and it worked. However, I was using a 7911 phone to test which we think may have negotiated a lower version of SCCP.Thanks
