CM 6.3: DTMF fails to Vector after coverage from virtual station

Doc ID    SOLN285067
Version:    1.0
Status:    Published
Published date:    11 Mar 2016
Author:   
gtefft
 

Details

Problem: Incoming SIP call to virtual station that covers to Extension and then VDN fails to transmit DTMF to the phone or the vector step. SIP calls direct to station or VDN pass DTMF with no issues.

The virtual station has 2 coverage points : Extension 8xxxxx, VDN 1xxxxx
The issue started after customer changed call routing from direct termination to VDN , to terminate call to virtual station with coverage to hard phone and then VDN if hard phone does not answer. If the hard phone is answered, the user cannot hear DTMF if sent by calling party and calling party cannot hear DTMF if sent by hard phone.
 

Problem Clarification

Calls to virtual station that cover to a VDN cannot select a menu option as DTMF digits are not detected

Cause

Software defect

Solution

Upgrade G450 FW to latest (36.16.0)

Patch CM to latest SP13  (22619)

Restricted Solutions Elements

 

1)      Here are the dtmf fixes the G450’s are currently missing If they upgrade to 36.16.0 they will get these fixes.
hw140100            CH          09/24/14              VoIP-DSP             t36.10.0                no DTMF generated in 1st call to dsp resource after reset
CMG4xx-23        Fixed     10/24/14              VOIP.o  36.12.0  G450 dtmf with rtp-payload not correct
CMG4xx-11        Fixed     10/24/14              VOIP.o  36.12.0  G450 ignors dtmf in rtp-payload
 
2)      Here are just some of the sip fixes that CM is missing which could contribute to the issue.  If they update CM to SP13 they will get these fixes.
MRs in 22619 and not in 22226:
 
MR:CM-7527     H.323 phones cannot send DTMFs on ISDN-PRI calls when the first trunk in route pattern was SIP trunk with SODM turned on.
MR:CM-4161     Via header does not have MG IP address in SDES calls
MR:CM-4007     Check for minimum capacity before selecting a VoIP source
MR:CM-4170     CM attempts to drop H.248 wildcarded termination when transaction times out
MR:CM-4700     SIP NCR does not happen when xferee got SO
MR:CM-4703     Music on Hold issue - shuffle reINVITE loop
MR:CM-4789     MEMPOOL errros while running calls between SIP and H323 stations
MR:CM-5064     SIP sig groups may not recover after ESS forced interchg
MR:CM-6043     Infinite loop in SIP AUA cause core dump.
MR:CM-6047     Allow CM to generate secure offers if Enforce SIPS URI for SRTP = n
MR:CM-6285     Sip trunk entry is missed in station form if I give rp1entry couple of times.
MR:CM-6444     H.323 ept to SIP trunk call dropped due to ESIG before 200 OK
MR:CM-6603     Enhance List Trace SIP Station to include Network-Region used.
MR:CM-6608     Re-transmitted SIP 180 Ringing corrupts Alert-Info header
MR:CM-6720     CM is not processing Display Name string and extension in INVITE and UPDATE correctly
MR:CM-7040     SIP Service Observing session not reconnected after hold
MR:CM-7079     SIP trunk call drop unexpectedly
MR:CM-8393     CM changes RequestURI on UPDATE from SIP to SIPS causes far end respond with 400 Bad Request
 

Avaya -- Proprietary. Use pursuant to the terms of your signed agreement or Avaya policy