User's Manual
Firmware Version 1.0.0.5 
UCM6510 IP PBX User Manual 
Page 148 of 192 
IAX SETTINGS 
The UCM6510 IAX global settings can be accessed via web GUI->PBX->IAX Settings. 
IAX SETTINGS/GENERAL 
Table 48: IAX Settings/General 
Bind Port 
Configure the port number that the IAX2 will be allowed to listen to. The 
default setting is 4569. 
Bind Address 
Configure the address that the IAX2 will be forced to bind to. The default 
setting is 0.0.0.0, which means all addresses. 
IAX1 Compatibility 
Select to configure IAX1 compatibility. The default setting is "No". 
No Checksums 
If selected, UDP checksums will be disabled and no checksums will be 
calculated/checked  on  systems  supporting  this  features.  The  default 
setting is "No". 
Delay Reject 
If enabled, the IAX2 will delay the rejection of calls to avoid DOS. The 
default setting is "No". 
ADSI 
Select to enable ADSI phone compatibility. The default setting is "No". 
Music On Hold Interpret 
Specify which Music On Hold class this channel would like to listen to 
when being put on hold. This music class is only effective if this channel 
has no music class configured and the bridged channel putting the call 
on hold has no "Music On Hold Suggest" setting. 
Music On Hold Suggest 
Specify which Music On Hold class to suggest to the bridged channel 
when putting the call on hold. 
Bandwidth 
Configure the bandwidth for IAX settings. The default setting is "Low". 
IAX SETTINGS/REGISTRATION 
Table 49: IAX Settings/Registration 
IAX Registration Options 
Min Reg Expire 
Configure the minimum period (in seconds) of registration. The default 
setting is 60. 
Max Reg Expire 
Configure the maximum period (in seconds) of registration. The default 
setting is 3600. 
IAX Thread Count 
Configure the number of IAX helper threads. The default setting is 10. 
IAX Max Thread Count 
Configure  the  maximum  number  of  IAX  threads  allowed.  The  default 










