/mcp000974: *Mar 9 15:53:01.222: //-1/xxxxxxxxxxxx/SIP/Info/info/1024/httpish_msg_free: Freed msg=0x7FF31DA 000975: *Mar 9 15:53:01.222: //-1/xxxxxxxxxxxx/SIP/Info/notify/8192/sip_dns_type_srv_query: TYPE SRV qu 000976: *Mar 9 15:53:01.224: //-1/xxxxxxxxxxxx/SIP/Info/info/8192/sip_dns_type_a_aaaa_query: DNS query 000977: *Mar 9 15:53:01.225: //-1/xxxxxxxxxxxx/SIP/Error/sip_dns_type_a_query: TYPE A query failed for cucm.cisco.com 000978: *Mar 9 15:53:01.225: //-1/xxxxxxxxxxxx/SIP/Error/_send_dns_fail: DNS Query for cucm.cisco.com failed 000984: *Mar 9 20:53:01.225: %VOICE_IEC-3-GW: SIP: Internal Error (DNS query fail): IEC=10.1.128.7.47.0
Maximum Connections and Bandwidth By default, VOIP and POTS dial-peers allow for unlimited connections (calls) and bandwidth (VOIP dial- peers only). For trunks that have a limit on the number of calls or bandwidth that can be utilized, it can be useful to employ the max-conn or max-bandwidth commands. max-conn was added in Cisco IOS 11.3(1)T and is present in all Cisco IOS XE versions while max-bandwidth was added in 15.2(2)T and Cisco IOS-XE 3.7S. Configuration Example Here you tell the gateway to limit dial-peer 1 to 30 calls using the max-conn 30 command. Dial-peer 2 is limiting bandwidth for that dial-peer so that we do not go over the allocated limit.
! dial-peer voice 1 voip description ITSP SIP Trunk - 30 Max Calls! session protocol sipv2 sess target ipv4:10.10.10.10 destination-pattern 8675309$ max-conn 30 ! dial-peer voice 2 voip description SIP Trunk with Bandwidth Restrictions!