Unable to receive calls on line 3 of Grandstream 4104

[jonnyfx]

I have 3 pstn lines connected to a Grandstream 4104.
I am unable to receive incoming calls on line 3 of the Grandstream.
Lines 1 and 2 are working perfectly.
Lines 1,2 and 3 set up as 10000, 10001 and 10002 so trying to dial in on 10002.
Grandstream status page showing phone number 1,2 and 3 as registered and pstn lines 1,2 and 3 as connected and idle.
3CX ver 10 Ports/Trunks Status showing all 3 lines as green registered and idle.

I get this error in the Server Activity Log when calling:
16:19:37.195 [CM102001]: Authentication failed for SipReq: INVITE [email protected] tid=b7927ee18fb29da5 cseq=INVITE [email protected]:5064 / 24729 from(wire); Reason: Credentials don't match, check that authorization-ID and password match the ones in extension settings

I have a single inbound rule for each line redirecting to the same extension.

Can anyone offer any insight into this??

Thank you in advance.

 

[leejor]

Did you go over all of your settings, for that trunk both in 3CX and the Grandstream? Be sure that you haven't duplicated something incorrectly if you did a cut and paste when setting up the trunks originally.

Some users have done that (cut and paste), with a password (or other settings) and not realized that a space was introduced unintentionally at the beginning or end of the "word".

 

[jonnyfx]

Thanks for the advice, appreciated.

I ended up deleting the PSTN gateway and recreated in 3CX. I chose 4 ports this time instead of 3 this time. Updated the credentials on the channel tab in the Grandstream. All 4 port status is ok in 3CX and in the Grandstream.

The first 2 ports work correctly as before but ports 3 and 4 report the same error as before.

Looking at the error in the log if the call is dialing into 10002 or 10003 (ports 3 or 4) why would the invite be to 10001? Is this why I am having problems?

 

[jonnyfx]

SOLVED.

Thanks for your help leejor, appreciated,

I found out that the wrong settings were in the User ID field of the Unconditional Call Forward.
Should have been:
ch1-4:10002;

instead of:
ch1-4:10001;

Thanks again, great forum.