Transfer call to outside number (cell) issues

[Joe Gadell]

Hi,

We have been having this issue for awhile now - haven't had enough time to address it.  We use SIP trunking - FYI.

This only happens on transfers to outside numbers.

Here is the process:

1. Outside call comes in to receptionist

2. Receptionst answers call, hits Trnsfer and dials the new number (typically a cell phone)

3. Receptions discusses transfer with cell phone recipient and then hits the Trnsfer button again

4. After pushing the Trnsfer button, receptionist sees that both calls are placed on hold on her phone.

5. She is able to grab both calls individually again but can never complete the outside transfer.

Any thoughts?

Thanks.

[bjames]

How many trunks do you have? Does she dial the digit for outside line?

If you debug the SIP traffic what do you see?

Bob James

[Joe Gadell]

Brian,

We have 20 SIP channels with Windstream over a T1.  The two "outside calls" connect, so the dialing 9 isn't an issue.  She is able to communicate with the original caller and the person she is transferring to.  However, when she his the Trnsfer button for the final time, it just leaves both callers on hold and hangs up her phone.  She can still see the pause symbol next to both calls on her phone, but her phone is on-hook.

Haven't run debugs yet, I thought it might be a simple configuration problem.

Thanks,

Joe

[David Trad]

Hi Joe,

4. After pushing the Trnsfer button, receptionist sees that both calls are placed on hold on her phone.
5. She is able to grab both calls individually again but can never complete the outside transfer.

It is this part here that is of concern, and it made me wonder if it is possible if you have the following:

• Set the receptionist phone up as either a dual-line or an octo-line, if the phone is setup as neither this particular result can be see as well
• If you have enough DSP resources, have you allocated your DSP resources correctly using CCA?

Can you give us a little more information about your setup? Is this a CLI based configuration or a CCA built system??

Maybe if possible can you please post your configuration with all the sensative stuff removed, however check the above first and let us know.

Cheers,

David.

[Joe Gadell]

David,

Thanks for the response.

1. Her ephone-dn is configured as a dual-line

2. I'm not exactly sure what the dsp resources should look like - can you compare to your configs for me?

I'm including the relevant parts of our config ( I hope ).  Thanks again.

Our config was created with an early CCA and has since been maintained CLI only due to integration with Exchange, MS Speech Server, and a few other 3rd party systems.

voice call send-alert
voice rtp send-recv
!
voice service voip
 no notify redirect ip2ip
 allow-connections h323 to h323
 allow-connections h323 to sip
 allow-connections sip to h323
 allow-connections sip to sip
 supplementary-service h450.12
 no supplementary-service sip moved-temporarily
 fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback pass-through g711ulaw
 sip
  registrar server expires max 3600 min 3600
!
voice class codec 1
 codec preference 1 g711ulaw
!
!
voice class cause-code 1
 no-circuit


dspfarm profile 2 transcode
 description CCA transcoding for SIP Trunk NuVox
 codec g711ulaw
 codec g729abr8
 codec g729ar8
 codec g711alaw
 codec g729r8
 maximum sessions 6
 associate application SCCP
!
telephony-service
 sdspfarm units 5
 sdspfarm transcode sessions 6
 sdspfarm tag 2 mtp001b8fafb460
 video
 moh-file-buffer 920
 fxo hook-flash
 max-ephones 14
 max-dn 56
 ip source-address 10.1.1.1 port 2000
 max-redirect 20
 auto assign 1 to 1 type bri
 calling-number initiator
 service phone videoCapability 1
 service phone ehookenable 1
 service dnis overlay
 service dnis dir-lookup
 timeouts interdigit 5
 url services http://10.1.10.1/voiceview/common/login.do
 url authentication http://10.1.10.2/CCMCIP/authenticate.asp
 load 7960-7940 P00308010200
 load 7941 SCCP41.8-5-3S
 load 7941GE SCCP41.8-5-3S
 load 7961 SCCP41.8-5-3S
 load 7961GE SCCP41.8-5-3S
 load 7970 SCCP70.8-5-3S
 load 7971 SCCP70.8-5-3S
 load 521G-524G cp524g-8-1-17
 load 525G spa525g-7-4-4
 load 501G spa50x-30x-7-4-6
 load 502G spa50x-30x-7-4-6
 load 504G spa50x-30x-7-4-6
 load 508G spa50x-30x-7-4-6
 load 509G spa50x-30x-7-4-6
 load 301 spa50x-30x-7-4-6
 load 303 spa50x-30x-7-4-6
 time-zone 8
 voicemail 501
 mwi relay
 max-conferences 4 gain -6
 call-forward pattern .T
 moh flash:/media/jazz2.wav
 multicast moh 239.10.16.16 port 2000
 dn-webedit
 time-webedit
 transfer-system full-consult dss
 transfer-pattern 9.T
 transfer-pattern .T
 transfer-pattern 6... blind
 secondary-dialtone 9
 fac standard
 create cnf-files version-stamp 7960 Jan 18 2011 09:18:47
!


ephone-dn  12  dual-line
 number 203 no-reg primary
 pickup-group 1
 label 203 - Dani
 name Dani J
 call-forward busy 501
 call-forward noan 501 timeout 20
!
ephone  11
 device-security-mode none
 mac-address 001E.BE90.7871
 ephone-template 16
 username "DaniJ" password 12345
 type 7960
 button  1:12 2m17 3m14 4w11
 button  5w15 6w20
!

[David Trad]

Hi Joe,

Your config at first sight looks fine...

Can you get some debug captures by any chance?

If you do not know how to debug the call please let me know and I will dig up the commands, but it would be good to see what is taking place to prevent the transfer taking place.

I will look over what you have posted further, although it would be better to provide you running configuration with just the sensitive stuff removed as there potentially could be more parts to the config that needs to be looked at, such as your dial-peers as well.

Cheers,

David.