Last updated on SEPTEMBER 06, 2015
Applies to:Net-Net OS - Version E-Cz7.3.0 to E-Cz7.3.0 [Release E-Cz7.0]
Information in this document applies to any platform.
We have a PBX which is not allowing DTMF when calls are sent via the SBC. If we send calls via same SIP service without the SBC in the route then DTMF is working as it should
The PBX is responding with a SIP 403 error
SIP/2.0 403 Forbidden
Via: SIP/2.0/UDP 172.31.169.166:5062;branch=z9hG4bKkdeiqg10dgq336ffn820.1
CSeq: 2 INFO
Server: IPFX-UA B2BUA-6.2.220.0000
IPFX-Reason: "Not allowed"
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