03-25-2014 01:21 PM - edited 03-18-2019 02:47 AM
Dears,
I have paired SX20 with ISDN link, the incoming call audio and video are successful
Thanks
03-25-2014 03:03 PM
Hi,
To my knowledge, SIP should be used as the default protocol while placing calls. ISDN Link installation guide mentions the following config on the end-point:
Endpoint configuration - Use the Remote Control or Touch panel to configure.
• IP Assignment = Manual
• IP Address = 192.168.1.100
• Subnet Mask = 255.255.255.0
• Gateway Address = 192.168.1.1
• Set Default Call Protocol = SIP
• Set Default Call Rate: 1920 (Euro PRI 30 channels @ 64kbps)
Please see if changing the call protocol makes any difference. You can also verify what protocol is being used in case of an incoming call.
Regards,
PS
03-25-2014 06:20 PM
Having SIP as the call protocol is what needed to be done with the original ISDN Link software (IL1.0.0). With the newer, and recommended, version (IL1.1.0), you set the call type to H.320 on the SX20. Note: You need to have at least version TC6.x on your SX20 and have IPv6 enabled on both the SX20 and the ISDN Link (for the auto pairing function to work).
With version IL1.1.0 on the ISDN, you no longer need to dial the complex "x-h320number=999999" format required with IL1.0.0, you just specify the number and call type H.320, and it sorts the rest out itself. Much nicer for the end user.
As for your inbound only using 1 channel, you'll need to check with your ISDN provider that the bonding functionality has been enabled on the two circuits. It may be as simple as you need to dial the other channel's number rather than the one you're using.
Wayne
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03-25-2014 11:11 PM
Dear prsachde,
the incoming call is H320 from polycom which works very fine but when i dial it goes through H323 and the call disconnects, when i change the protocol to H320 issue is same. Also when i try to call GSM user the call disconnects , Neither H320,SIP,H323 protocol is working
Dear Wayne,
SX20 is 6.3,, ISDN link is (IL1.1.0) The ISDN link is already parired successfully.
I tried the by specifying the call type H320 as well but no success.
Thanks
03-26-2014 04:41 PM
Can you post the config of your ISDNLink so we can check the configuration?
As a comparison for you, I've attached the xconf of one of mine that works.
Wayne
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