MIVB SIP Trunk to Provider 3

[Tinos]

Good day.
I have an MIVB that I want to connect with a SIP Trunk to Telco without an MBG (I understand the best practice is to use MBG). There is a Cisco Router that provides internet connectivity to the SIP Provider. It is required to configure Port Forwarding on the Cisco router. Currently port 5060 is forwarded to the MIVB and 20002-2999, 50000-501111 forwarded to the phone subnet. Calls connect without audio.
Any advise on which other ports to forward and a sample configuration for the Cisco Router?

 

[Billz66]

Mitel RTP is peer to peer
MIVB will need to be able to route directly to the carrier for signalling
all phones and any other VOIP device will also need to be able to route directly to the carrier

when you have a MBG in place it provides a means to ensure all signalling and RTP traffic is first routed to the MBG and the MBG then sends/recieves it all to/from the carrier
makes life easier and it also adds a demarcation point where you can run packet captures if there are any issues

 

[bpetya]

Hi!

There is no sound because the sound goes on a completely different port. By default, Mitel uses ports 17000-31999 for media transfer.

 

[YZeglam]

To ensure proper audio on your SIP trunk setup without an MBG, you need to make sure that all necessary ports are forwarded correctly. Here are some additional ports you might need to forward:

1. SIP Signaling:
   • Port 5060 (UDP/TCP) for SIP signaling.
2. RTP (Real-Time Protocol) for Audio:
   • Ports 10000-20000 (UDP) for RTP traffic. This range can vary depending on your specific configuration and the number of concurrent calls.
3. Additional Ports:
   • Ports 3478-3479 (UDP) for STUN (Session Traversal Utilities for NAT).
   • Ports 16384-32767 (UDP) for RTP/RTCP (Real-Time Control Protocol) traffic.

Sample Configuration for Cisco Router​

Here’s a basic example of how you might configure port forwarding on a Cisco router:

ip nat inside source static udp <MIVB_Internal_IP> 5060 interface <External_Interface> 5060
ip nat inside source static udp <MIVB_Internal_IP> 10000 10000
ip nat inside source static udp <MIVB_Internal_IP> 20000 20000
ip nat inside source static udp <MIVB_Internal_IP> 3478 3478
ip nat inside source static udp <MIVB_Internal_IP> 3479 3479
ip nat inside source static udp <MIVB_Internal_IP> 16384 16384
ip nat inside source static udp <MIVB_Internal_IP> 32767 32767
Replace <MIVB_Internal_IP> with the internal IP address of your MIVB and <External_Interface> with the external interface of your Cisco router.

 

[Tinos]

To ensure proper audio on your SIP trunk setup without an MBG, you need to make sure that all necessary ports are forwarded correctly. Here are some additional ports you might need to forward:

1. SIP Signaling:
   • Port 5060 (UDP/TCP) for SIP signaling.
2. RTP (Real-Time Protocol) for Audio:
   • Ports 10000-20000 (UDP) for RTP traffic. This range can vary depending on your specific configuration and the number of concurrent calls.
3. Additional Ports:
   • Ports 3478-3479 (UDP) for STUN (Session Traversal Utilities for NAT).
   • Ports 16384-32767 (UDP) for RTP/RTCP (Real-Time Control Protocol) traffic.

Sample Configuration for Cisco Router​

Here’s a basic example of how you might configure port forwarding on a Cisco router:

ip nat inside source static udp <MIVB_Internal_IP> 5060 interface <External_Interface> 5060
ip nat inside source static udp <MIVB_Internal_IP> 10000 10000
ip nat inside source static udp <MIVB_Internal_IP> 20000 20000
ip nat inside source static udp <MIVB_Internal_IP> 3478 3478
ip nat inside source static udp <MIVB_Internal_IP> 3479 3479
ip nat inside source static udp <MIVB_Internal_IP> 16384 16384
ip nat inside source static udp <MIVB_Internal_IP> 32767 32767
Replace <MIVB_Internal_IP> with the internal IP address of your MIVB and <External_Interface> with the external interface of your Cisco router.

Thank you such. My issue is resolved