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Mitel Forums => Aastra - MiVoice Office 400 and MiVoice MX-One => Topic started by: gimitel on November 14, 2019, 08:02:00 AM

Title: Tech Issue on SIP Trunk
Post by: gimitel on November 14, 2019, 08:02:00 AM

Hi Guys,

I have a question. I have a sip trunk programmed on a Mitel 470.
When I dial the main number which is programmed on the sip trunk, the call drops.
I can received the call normally, but the call drops afterwards.

Can someone help me out on this one?

Thanks,


Gianni

Title: Tech Issue on SIP Trunk. Call drop when answering the call
Post by: gimitel on November 14, 2019, 01:38:30 PM

Hi Guys,

I have a question. I have a sip trunk programmed on a Mitel 470.
When I dial the main number which is programmed on the sip trunk, the call drops.
I can received the call normally, but the call drops when answering the call.

The pbx is connected on the customer LAN and authenticate through an static public ip with the sip provider.

Can someone help me out on this one?

Thanks,


Gianni
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Title: Re: Tech Issue on SIP Trunk
Post by: sarond on November 15, 2019, 05:36:57 AM

So no username/password.

Do you have ports forwarded to PABX?

Title: Re: Tech Issue on SIP Trunk
Post by: gimitel on November 15, 2019, 07:01:52 AM

Hi Sarond,

Yes I have username and password. Forgot to mentioned that.
I have no port forwarding programmed. Do I need to do port forwarding to the ip address of the PBX?
If yes, do I need to forward the RTP ports ?

Regards,

Gimitel

Title: Re: Tech Issue on SIP Trunk
Post by: sarond on November 15, 2019, 09:25:15 AM

Yes you will need to do port forwarding for both SIP ad RTP if you have connections initiating from external.

This also opens your PBX to risk, can you restrict the port forwards to the VoIP provider only?

Title: Re: Tech Issue on SIP Trunk
Post by: gimitel on November 15, 2019, 11:53:39 AM

Hi Sarond,

This issue started when the software release was upgraded from 4.1 to 6.1.
Waiting for the network tech to do the portforwarding.

Regards,

Gimitel