Hi,
There is no RBT in the incoming call from ISP to CUCM.
There are no 180 Ringing or 183 Session Progress in call leg (ISP - CUBE) but in call leg (CUBE-CUCM) it is present.
Could you please help me to resolve this issue?
Scheme:
ISP (83.137.x.x) - SIP- CUBE (10.175.y.y) (IVR) - SIP - CUCM (10.175.z.z)
CUBE config:
voice service voip
mode border-element
allow-connections sip to sip
redirect ip2ip
fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none
sip
bind control source-interface Loopback1
bind media source-interface Loopback1
history-info
no call service stop
!
voice class codec 1
codec preference 1 g711alaw
codec preference 2 g711ulaw
application
service N flash:/AA/N.tcl
paramspace english index 0
paramspace english language en
paramspace english location flash:/AA/
param max-extension-length 4
param aa-pilot 4955555555
paramspace english prefix en
param operator 5556
dial-peer voice 200 voip
preference 5
service n
destination-pattern [567]...$
session protocol sipv2
session target ipv4:10.175.z.z
incoming called-number 4955555555
voice-class codec 1
dtmf-relay cisco-rtp rtp-nte
no vad
