[Asterisk-Users] Struggling with grandstream sip to asterisk

[Stephen R. Besch]

TC wrote:

>>You can't use INFO with the GS. * and GS interpret the INFO standard
>>differently.  As a result, the GS does multiple digit transmission.  Use
>>either inband or the RFC2833 option.  INFO will not work no matter what
>>you do.
>>    
>>
>I am using the following settings
>
>Software Version:    Program--1.0.4.20    Bootloader--1.0.0.12
>HTML--1.0.0.19
>Send DTMF: via SIP INFO
>DTMF Payload Type: 101
>
>and I can dial dtmf fine & interact with * Background menus &
>other PBX IVR systems
>
>What test are you doing to show INFO is not supported on GS
>  
>
It's not that INFO is not supported, it's just that it did not work 
without transmitting multiple copies of digits to *.  I have been told 
(by GS) that this was a problem with *, and it may be that it has been 
fixed in more recent CVS releases (mine is about 2 months old right 
now). On the otherhand, unless I use inband, the # key does not work on 
some (not all) IVR systems that I dial into.  Rather than wasting time 
trying to figure out why, I just use inband.