I am putting together a site for a customer with a UC540 (8.0.2) behind an SR520 (12.4(24)t3-ADV-IP-SERV-CRYPTO). Everything seems to work great in passing data through, but voice is a no go. From my experience with the SA520, I had to create static routes for the three VLANs from the UC540. When I went to do this on the SR520, there was already a static route for 192.168.10.0 for the SR520's vlan75. I went ahead and added 10.1.1.0 and 10.1.10.0 and pointed them toward 192.168.75.2 (UC540's WAN IP) as their gateway. In addition, I configured port forwarding in NAT to forward all traffic on port 5060 (TCP and UDP) to forward through the SR520 to the UC540 (192.168.75.2).
SIP trunk - NexVortex
1. Inbound calls - no worky
I removed the two new SIP source groups created by CCA as follows, but the normal one that I usually see (CCA_SIP_SOURCE_GROUP) didn't appear to exist:
UC540(config)#no voice source-group CCA_SIP_SOURCE_GROUP
source ip group CCA_SIP_SOURCE_GROUP does not exist
UC540(config)#no voice source-group CCA_SIP_SOURCE_GROUP_CUE_CME
UC540(config)#no voice source-group CCA_SIP_SOURCE_GROUP_EXTERNAL
Are there other SIP source groups that exist that could be preventing this?
2. Outbound calls - no audio
I usually configure this setup with an SA500 in front. In those cases, I have to forward RTP traffic in addition to SIP traffic to make audio work. On the SR520, however, I can't figure out how to add a range of ports and it would be impossible to add several thousand ports into NAT using CCA. Any help on this one?
Thanks in advance,