Hello There!
I need help regarding VOIP.
I am using Cisco 3825 with IOS: c3825-advipservicesk9-mz.124-6.T11.bin on the edge.
Diagram: ISP router/modem >>>>>> Cisco Router C 3825 >>>> Cisco Switch 2960 >>>> Cisco IP Phone 7940.
We are using Issabel PBX as our VOIP server which is located on Hetzner Cloud in Germany. We are using some softphone eyebeam and some cisco IP phones 7940.
Cisco Router is configured with NAT, DHCP Server. It has 2 ports one is WAN other is LAN.
The issue is that extension configured on eyebeam works fine ang get registered. But cisco IP phone does not get registered. There is no hit on asterisk CLI.
The output of Debug IP nat sip is below.
54:13.143: NAT: SIP: Trying to find expires parameter
*May 30 19:54:13.143: NAT: SIP: [0] translated embedded address 192.168.50.13->192.168.100.100
*May 30 19:54:13.143: NAT: SIP: [0] translate embedded port 5060->1032
*May 30 19:54:13.143: NAT: SIP: [0] register:1 door_created:1
*May 30 19:54:13.143: NAT: SIP: expires value not yet found
*May 30 19:54:13.143: NAT: SIP: found Expires header, 3600 sec
*May 30 19:54:13.143: NAT: SIP: expiration timer for the registration door set to 3600 sec
*May 30 19:54:15.143: NAT: SIP: [0] processing REGISTER message
*May 30 19:54:15.143: NAT: SIP: [0] register:0 door_created:0
*May 30 19:54:15.143: NAT: SIP: [0] translated embedded address 192.168.50.13->192.168.100.100
*May 30 19:54:15.143: NAT: SIP: [0] translate embedded port 5060->1032
*May 30 19:54:15.143: NAT: SIP: [0] register:0 door_created:1
*May 30 19:54:15.143: NAT: SIP: [0] register:0 door_created:0
*May 30 19:54:15.143: NAT: SIP: [0] register:0 door_created:0
*May 30 19:54:15.143: NAT: SIP: Trying to find expires parameter
*May 30 19:54:15.143: NAT: SIP: [0] translated embedded address 192.168.50.13->192.168.100.100
*May 30 19:54:15.143: NAT: SIP: [0] translate embedded port 5060->1032
*May 30 19:54:15.143: NAT: SIP: [0] register:1 door_created:1
*May 30 19:54:15.143: NAT: SIP: expires value not yet found
*May 30 19:54:15.143: NAT: SIP: found Expires header, 3600 sec
*May 30 19:54:15.143: NAT: SIP: expiration timer for the registration door set to 3600 sec
*May 30 19:54:19.143: NAT: SIP: [0] processing REGISTER message
*May 30 19:54:19.143: NAT: SIP: [0] register:0 door_created:0
*May 30 19:54:19.143: NAT: SIP: [0] translated embedded address 192.168.50.13->192.168.100.100
*May 30 19:54:19.143: NAT: SIP: [0] translate embedded port 5060->1032
*May 30 19:54:19.143: NAT: SIP: [0] register:0 door_created:1
*May 30 19:54:19.143: NAT: SIP: [0] register:0 door_created:0
*May 30 19:54:19.143: NAT: SIP: [0] register:0 door_created:0
*May 30 19:54:19.143: NAT: SIP: Trying to find expires parameter
*May 30 19:54:19.143: NAT: SIP: [0] translated embedded address 192.168.50.13->192.168.100.100
*May 30 19:54:19.143: NAT: SIP: [0] translate embedded port 5060->1032
*May 30 19:54:19.143: NAT: SIP: [0] register:1 door_created:1
*May 30 19:54:19.143: NAT: SIP: expires value not yet found
*May 30 19:54:19.143: NAT: SIP: found Expires header, 3600 sec
*May 30 19:54:19.143: NAT: SIP: expiration timer for the registration door set to 3600 sec
