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 Post subject: What is the Proper NAT Setting Of SIP Friend in A2B 2.0 + *?
PostPosted: Fri Nov 15, 2013 6:21 pm 
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Joined: Mon Apr 14, 2008 8:37 pm
Posts: 356
Location: Canada
Hi All,

I am having this annoying problem with setting up SIP friends in A2Billing. I have an extension in FreePBX that has perfect 2 way audio. I am also putting in the account number from A2B in the accountcode section of the extension in FreePBX for it to make outgoing calls and that works fine.

However, when I put in the credentials for the SIP friend created in A2Billing into an ATA, this is what happens:

1. nat=yes
- SIP Friend will not ring
- Can make outgoing call
- There is two way audio between caller and callee

2. nat=no
- SIP friend will not ring
- Can make outgoing call
- Caller can hear callee
- Callee can't hear call

3. nat=force_rport,comedia
- SIP friend will not ring
- Can make outgoing call
- Caller can hear callee
- Callee can't hear call

4. nat=never
- SIP friend will not ring
- One way audio

This has been frustrating me for a week now, and the client is truly upset. I can register an extension on FreePBX fine and get two way audio when calls are made to the PSTN and from the PSTN to the extension, but with A2Billing in the mix, no dice!

I am using A2B 2.0, Asterisk 11.3, FreePBX 2.10, Linksys PAP2T ATA, Grandstream HT502 ATA

Any help would be appreciate. And no, upgrading is not an option!


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 Post subject: Re: What is the Proper NAT Setting Of SIP Friend in A2B 2.0 + *?
PostPosted: Mon Nov 18, 2013 12:41 pm 
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Joined: Fri Jun 23, 2006 3:56 pm
Posts: 4065
Hi

Check what NAT setting you are using for FreePBX and use the same one, it should work correctly.

Make sure of the NAT setting by doing sip show peer at the asterisk CLI, both to discover the NAT setting, and to confirm the setting has taken when applied to A2Billing.

Joe


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 Post subject: Re: What is the Proper NAT Setting Of SIP Friend in A2B 2.0 + *?
PostPosted: Mon Nov 18, 2013 7:28 pm 
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Joined: Tue Oct 30, 2012 11:56 am
Posts: 23
Hi

try this into voip setting a2b

USERNAME = DATA FIELDS (NAME)
DEFAULTUSER= DATA FIELDS (NAME)
TYPE= friend
DTMFMODE =RFC2833
NAT=yes
CANREINVITE =no
RTPTIMEOUT =0
RTPHOLDTIMEOUT = 0
OUTBOUNDPROXY = 0.0.0.0
RTPKEEPALIVE =0


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