Srini and All, Can you point me to a design document for end to end collaboration. Aim of this set-up is to allow Jabber client running on all the end user endpoints (iPAD,iPhone,Android device,LapTop, Samsung Glaxy Notebook) using which any enterprise user can use corporate infrastructure for inbound/outbound telephone calls, IM/Presence without using a separate VPN client or don't have to worry about installing a dedicated client for Audio/Video or IM/Presence. The PoC set-up topology look like as stated below : Jabber UNIFIED Client ----->Internet ---->Internet FW----->VCS_Expressway_8.1E----->Internal FW----->Application Segment(VCS-ExpresswayC) ----> CUCM Servers---->IPT Servers-----> Enterprise Phone/Video End points Q) Looking towards clarity on Positioning of Expressway E , FQDN , DNS entry and clarity on call path in detail Q) Clarity on Firewall port end to end. I was going through the document "Cisco Expressway X8.1-D15066.01 December 2013" but not able to find out what will be the firewall rule for communication between VCS Expressway E and C? If my question is a repeat then please point me to the right document. Thanks for your kind attention. Mani ... View more

Cisco MediaSense Server does the recording and I am not sure whether that will do the job. If it does, I am looking for a referal design documents Regards M ... View more

Hi David, Sorry for creating confusion but I myself is confused now about which solution will work for the following scenario which co-exist at all location : 1) Normal FAX call from point A to Point B without any external secure device - T38 FAX relay is the solution for this. 2) Analog Fax connected to a Hardware device doing Encryption and then connected to VG or ATA need to send the fax at the other end device which is connected the same way i.e VG/ATA and Encryption device then the FAX machine. I haven't tested but I was told that it has been observed working over a Layer 2 connectivity or VPN but it was observed not working over an IP link. So, my thought is- to have this working the only thing needed is : After encryption device, the stream carrying FAX encrypted detail need to be received as is at the other end What does that mean in my term is "that the IP media just act as transit path or carrier for the fax message and don't do any changes in the encrypted message" I am not sure which solution will work for this and need to test out in detail.. At this moment it can be passthrough or T38 or tweaking the HairPin setup. Though I am still trying to understand the Hairpin calls as stated in your book page 237(Chapter 7) and whether FAX server is necessary..The T1/E1 connection to the FAX server as depicted in the diagram can be a Voice Gateway at the other end of the WAN and in place of FAX server a FAX machine connected to it. Regards Mani ... View more

David, By clear Channel, I was referring a setup where Analog FAX machine is connected to ATA or VG and at the gateway level it's gets modulated and Demodulated and gets transmitted over IP media.IP Media is not doing any packet level changes and just passing whatever information it received without any add on to that information. Looking for specific configuration and how well this can be scaled where CCM is acting as a calling agent and number of such FAX machine is around 100+ in total? Thanks and regards mani ... View more

Thanks David for your explanation. I was following all the command mentioned in your reply but may be I have to try that throughout the call duration and hope I will be able to find something. One more clarification: Whether Clear Channel and T.38 setup for fax transmission co-exist? If yes, then what's the required configuration and what will be the call behaviour? Sometime there are scenario where you have VG224 and ATA's and that makes things little confusing. Also, any specific design for a scenario where there exist two setup A normal fax setup which can work with T.38 and on the other hand, stand-alone secure fax machines which are having a hardware based secure device attached and can't tolerate any change with digitiged FAX media throughout the FAX transmission. I read it in your book regarding Clear Channel or hair pinning but not sure how to achieve it? any pointers? Thanks ... View more

Hi David, It's nice to see that there is a special session for FAX over IP. I met you in Person at Cisco Networkers 2010@Vegas and also gone multiple time the great book written by you. Issue (Refer-Open SR-616076263 specific to the FAX call over IP using CUBE setup).  : 1st- With VG224, fax is working but I am clueless how the Fax call is using end to end G728r Codec and the calls are happening as normal Voice Call. Can't see the change between call starting as voice and going to FAX specific setup. Guess is that by default ISR has FAX relay enabled and this call is using the same relay setup. Looking for a step by step way of debug commands and sh command and what to look for in those debug which will show the call flow. I used debug voip ccapi inout but really can't make out the difference between Voice and a Fax call. It's confusing. 2nd case, I have one ATA connected to remote 2 site and in that case only one way Fax is happening i.e Fax from HQ to  ATA connected FAX is happening but other way around that is From ATA connected FAX to HQ PBX fax is not happening. It may be an issue with the FAX passthrough but instead of jumping to conclusion, aim of this Q is what the best step of troubleshooting a FAX call. Regards, Mani ... View more

Hi, I read about this feature but was not able to implement this and gave up.. If posible I would like to know how did you enable this and what the end user receive when he/she receives a new message and how does he/she access the message and status of MWI? Thanks and Regards ... View more

Thanks for your response. Scenario is in case of Branches, I want a setup where I don't need to advertise Branch IP Phone network or hide them. Both end has CCM cluster. So, confused about what the best way to allow them to talk to each other over WAN. Options:- 1) Put the GW at both end which can act as a proxy and terminate the RTP stream respectively and as both GW know each other call should go through. SOme kind of Proxy at each end which hides the Phone network. Not sure about the config aspect to set this up 2) GK controlled ICT where in respective CCM will register respective site CCM to GK and then GK will talk to each other but here not sure about RTP stream and config I am confused. Anyway love to hear some input with this kind of restriction. I can implement NON GK controlled ICT trunk but that option is not good because each site has to define respective location CCM Cluster and then IP PHONE network too which is not a good idea. Pl suggest the best way to connect both end. Both end uses Cisco Phones register with respective CCM Clusters. Regards ... View more

Hi Walid, Can you share your input specific to this and email the information at manishankarp78@gmail.com Thanks ... View more

As far as DSP is concerned, it's very confusing and yes it is right to say what you r planning and what kind of complexity u r bringing in at CODEC level. I am still testing it out in LAB and trying to conclude soon. PVDM2-64's are available at motherboard level on ISR then u have NM-HDV2 too consisting of DSP's. How they co-relate, I am not clear with the number provided on CISCO websites.. Regards ... View more

the above guide is ther with me too but regarding Intecom pbx talking to CCM, I didn't get anything as such ..:-( Thanks anyway for ur help and concern... ... View more

This is the PBX setup for PRI coming to us. ** TRUNK GROUP DEFINITION ***...TRUNK GROUP........................413 ***...TRUNK GROUP TYPE...................PRI TCI...TRUNK CLASS IDENTIFICATION.........LOCAL CO UGP...USER GROUP NUMBER..................107 VTT...VOICE TRUNK TRANSFER ENABLED.......YES CNC...NATIONAL CALLING PARTY # CONTENTS..NONE DCP...DISPLAY CALLING PARTY NUMBER.......NO PND...PRIVATE NETWORK....................NO ***...LANmark PRI TRUNK GROUP............NO TCM...TRAVELING CLASSMARK................NO FTH...FAILURE THRESHOLD..................3 CHT...TRUNK MONITOR MINIMUM HOLD TIME....0 DCT...DATA CALLS ALLOWED.................YES TCH...TRUNK CALL HANDLING................EXTERNAL NDS...DISCONNECT SUPERVISION.............YES IGG...IGNORE GLARE.......................NO XFT...DISTANT IBX ALLOWS FEATURE TRANSP..NO DPT...DTMF PASSTHROUGH TIMING INDEX......NONE RETURN CONTINUES DISPLAY..... => ......TRUNK DIRECTION....................BOTH WAYS *** INCOMING PARAMETERS STY...INCOMING CALL ORIGINATION TYPE.....PRI TRUNK TYP...INCOMING TRUNK TYPE................DIALED AND DIRECT DIAL ICM...INCOMING CALL MESSAGE #............NONE WPR...WHISPER MESSAGE SOURCE GROUP.......NONE NDC...NUMBER OF DID DIGITS TO COLLECT....5 PFX...PREFIX DIGITS......................NONE APA...TRUNK GROUP AUTHORIZATION TYPE.....NONE PVA...PRE-VALIDATE AUTHORIZATION CODE....NO LVL...PREDEFINED LEVEL CODE..............NONE TNE...TONE TABLE ENTRY NUMBER............NONE RGF...DTMF RECEIVER GROUP................52 TOO...TIMEOUT TO ATTENDANT...............NO RAC...REUSE AUTH FOR MULT. CALLS.........NO CWR...CALLWAIT RINGBACK..................NO UCT...TRUNK UPDATE CDR ON TRANSFER.......ALL CPT...CALL PROGRESSING TONES:............IBX PROVIDED IUG...InteMail LAMP MESSAGE USER GROUPS..OWN NUG...INTER-USER GROUP NNP USER GROUPS...OWN NDN...NIGHT ANSWER DIRECTORY.............NONE TCT...STATION CALL RESTRICTION ENABLED...NO 8NC...800 TO 4D SPEED NUMBER CONVERSION..NO RETURN CONTINUES DISPLAY..... => NPB...NETWORK PLAYS BUSY SIGNAL FOR PRI..YES NPR...NETWORK PLAYS REORDER FOR PRI......YES NWT...CALL PARTY NAME WAIT TIME..........NONE *** OUTGOING PARAMETERS TXA...DIRECT TGRP SELECT ALLOWED.........NO SLC...TRUNK SELECTION....................LONGEST HDA...HARDWARE ANSWER....................YES CXF...CANCEL TRANSFER....................NO ICA...INTER-LATA CARRIER.................10XXX or 101XXXX CPN...CALLING PARTY NUMBER...............SEND ALWAYS CPM...CALLING PARTY NAME.................SEND NAME PNN...ON-NET CALL: CALLING PARTY NUMBER..ISDN/TELEPHONY PNF...OFF-NET CALL: CALLING PARTY NUMBER.ISDN/TELEPHONY Thanks. ... View more