Here is the output from ScanModem:

Please especially look at <----- points .  I added comments / questions after <----------- ? .

--------------------------  System information ----------------------------
CPU=x86_64,  Ubuntu ,  ALSA_version=1.0.24
Linux version 3.2.0-38-generic (buildd@allspice) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #59-Ubuntu SMP Tue Feb 5 17:53:03 UTC 2013
 scanModem update of:  2011_08_08

Distrib_ID=Ubuntu
DistribCodeName=precise
AptRepositoryStem=http://us.archive.ubuntu.com/ubuntu/


The dkms driver upgrade utilities are installed,


Some modem drivers can only be used in 32 bit modem on x86_64 systems,     <-------- ? this is a 64 bit system, but not linmodem
while some others are competent on x86_64 Systems.  Cases are:
1) http://linmodems.technion.ac.il/bigarch/archive-seventh/msg03119.html 
for the snd-hda-intel audio+modem driver. Also applicable to AC97 modem controllers.
In both cases, 32 bit libraries must be installed to support the slmodemd helper having a precompiled 32 bit component.
2) For USB modems using the slusb.ko driver. 32 bit libraries must be installed to support the slmodemd helper having a precompiled 32 bit component
3) The hsfmodem and hcfpcimodem drivers for Conexant chipsest modes are x86_64 competent.
4) agrsm packages for LSI/AgereSystems softmodems are not competent on x86_64 systems.

 There are no blacklisted modem drivers in /etc/modprobe*  files 

 Potentially useful modem drivers now loaded are:
       snd_hda_intel                                                                      <------------------ ?

Attached USB devices are:
 ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
 ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
 ID 057b:0000 Y-E Data, Inc. FlashBuster-U Floppy
 ID 051d:0002 American Power Conversion Uninterruptible Power Supply
 ID 058f:6366 Alcor Micro Corp. Multi Flash Reader
 ID 046d:c52b Logitech, Inc. Unifying Receiver
If a cellphone is not detected, see http://ubuntuforums.org/archive/index.php/t-878554.html
A sample report is:  http://linmodems.technion.ac.il/bigarch/archive-nineth/msg00578.html

If a USB modem or cellphone is attached and was not detected, please
provide available information in your request to <email address hidden>

Candidate PCI devices with modem chips are:
00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04)     <------------------ wifi ?
04:01.0 Serial controller: 3Com Corp, Modem Division 56K FaxModem Model 5610 (rev 01)            <------------------ my modem 00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04)
01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Device aab0
High Definition Audio cards can host modem chips.

For candidate card in slot 00:16.0, firmware information and bootup diagnostics are:
 PCI slot	PCI ID		SubsystemID	Name
 ----------	---------	---------	--------------
 00:16.0	8086:1e3a	8086:2040	Communication controller: Intel Corporation Panther Point MEI Controller #1 

 Modem interrupt assignment and sharing: 
 54:         15          0          0          0          0          0          0          0  IR-PCI-MSI-edge      mei
 --- Bootup diagnostics for card in PCI slot 00:16.0 ----
[    1.047828] pci 0000:00:16.0: [8086:1e3a] type 0 class 0x000780
[    1.047849] pci 0000:00:16.0: reg 10: [mem 0xf7f3b000-0xf7f3b00f 64bit]
[    1.047919] pci 0000:00:16.0: PME# supported from D0 D3hot D3cold
[    1.047922] pci 0000:00:16.0: PME# disabled
[    9.966807] mei 0000:00:16.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[    9.966813] mei 0000:00:16.0: setting latency timer to 64
[    9.966875] mei 0000:00:16.0: irq 54 for MSI/MSI-X

 The PCI slot 00:16.0 of the modem card may be disabled early in              <------------------ ? not my modem, wifi?
 a bootup process,  but then enabled later. If modem drivers load 
 but the  modem is not responsive, read DOCs/Bootup.txt about possible fixes.
 Send dmesg.txt along with ModemData.txt to <email address hidden>
 if help is needed.
 

For candidate card in slot 04:01.0, firmware information and bootup diagnostics are:           <------------------  my modem
 PCI slot	PCI ID		SubsystemID	Name
 ----------	---------	---------	--------------
 04:01.0	12b9:1008	12b9:00d3	Serial controller: 3Com Corp, Modem Division 56K FaxModem Model 5610 

 Modem interrupt assignment and sharing: 
 --- Bootup diagnostics for card in PCI slot 04:01.0 ----
[    1.054714] pci 0000:04:01.0: [12b9:1008] type 0 class 0x000700
[    1.054758] pci 0000:04:01.0: reg 10: [io  0xd000-0xd007]
[    1.054963] pci 0000:04:01.0: supports D2
[    1.054964] pci 0000:04:01.0: PME# supported from D0 D2 D3hot D3cold
[    1.054972] pci 0000:04:01.0: PME# disabled
[    1.424176] serial 0000:04:01.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[    1.445144] 0000:04:01.0: ttyS4 at I/O 0xd000 (irq = 17) is a 16550A

 The PCI slot 04:01.0 of the modem card may be disabled early in 
 a bootup process,  but then enabled later. If modem drivers load 
 but the  modem is not responsive, read DOCs/Bootup.txt about possible fixes.
 Send dmesg.txt along with ModemData.txt to <email address hidden>
 if help is needed.
 

For candidate card in slot 00:1b.0, firmware information and bootup diagnostics are:
 PCI slot	PCI ID		SubsystemID	Name
 ----------	---------	---------	--------------
 00:1b.0	8086:1e20	8086:2040	Audio device: Intel Corporation Panther Point High Definition Audio Controller 

 Modem interrupt assignment and sharing: 
 55:       2206          0          0          0          0          0          0          0  IR-PCI-MSI-edge      snd_hda_intel
 --- Bootup diagnostics for card in PCI slot 00:1b.0 ----
[    1.048194] pci 0000:00:1b.0: [8086:1e20] type 0 class 0x000403
[    1.048208] pci 0000:00:1b.0: reg 10: [mem 0xf7f30000-0xf7f33fff 64bit]
[    1.048270] pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold
[    1.048273] pci 0000:00:1b.0: PME# disabled
[    9.998776] snd_hda_intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
[    9.998829] snd_hda_intel 0000:00:1b.0: irq 55 for MSI/MSI-X
[    9.998850] snd_hda_intel 0000:00:1b.0: setting latency timer to 64
[   10.048400] input: HDA Intel PCH Line as /devices/pci0000:00/0000:00:1b.0/sound/card0/input4
[   10.048456] input: HDA Intel PCH Front Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input5
[   10.048499] input: HDA Intel PCH Rear Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input6
[   10.048532] input: HDA Intel PCH Front Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input7
[   10.048563] input: HDA Intel PCH Line-Out CLFE as /devices/pci0000:00/0000:00:1b.0/sound/card0/input8
[   10.048629] input: HDA Intel PCH Line-Out Surround as /devices/pci0000:00/0000:00:1b.0/sound/card0/input9
[   10.048683] input: HDA Intel PCH Line-Out Front as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10

 The PCI slot 00:1b.0 of the modem card may be disabled early in 
 a bootup process,  but then enabled later. If modem drivers load 
 but the  modem is not responsive, read DOCs/Bootup.txt about possible fixes.
 Send dmesg.txt along with ModemData.txt to <email address hidden>
 if help is needed.
 

For candidate card in slot 01:00.1, firmware information and bootup diagnostics are:
 PCI slot	PCI ID		SubsystemID	Name
 ----------	---------	---------	--------------
 01:00.1	1002:aab0	174b:aab0	Audio device: Advanced Micro Devices [AMD] nee ATI Device aab0

 Modem interrupt assignment and sharing: 
 --- Bootup diagnostics for card in PCI slot 01:00.1 ----
[    1.049233] pci 0000:01:00.1: [1002:aab0] type 0 class 0x000403
[    1.049243] pci 0000:01:00.1: reg 10: [mem 0xf7e60000-0xf7e63fff 64bit]
[    1.049299] pci 0000:01:00.1: supports D1 D2
[   10.048868] snd_hda_intel 0000:01:00.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17
[   10.048929] snd_hda_intel 0000:01:00.1: irq 56 for MSI/MSI-X
[   10.048943] snd_hda_intel 0000:01:00.1: setting latency timer to 64
[   10.568736] snd_hda_intel 0000:01:00.1: PCI INT B disabled
[   10.568742] snd_hda_intel: probe of 0000:01:00.1 failed with error -16

 The PCI slot 01:00.1 of the modem card may be disabled early in 
 a bootup process,  but then enabled later. If modem drivers load 
 but the  modem is not responsive, read DOCs/Bootup.txt about possible fixes.
 Send dmesg.txt along with ModemData.txt to <email address hidden>
 if help is needed.
 

=== Finished firmware and bootup diagnostics, next deducing cogent software. ===

Predictive  diagnostics for card in bus 04:01.0:
	Modem chipset  detected on
NAME="Serial controller: 3Com Corp, Modem Division 56K FaxModem Model 5610 "
CLASS=0700
PCIDEV=12b9:1008
SUBSYS=12b9:00d3
IRQ=17
IDENT=USrobotics.serial

 For candidate modem in:  04:01.0
   0700 Serial controller: 3Com Corp, Modem Division 56K FaxModem Model 5610 
      Primary device ID:  12b9:1008
 Support type needed or chipset:	USrobotics.serial
 

Predictive  diagnostics for card in bus 00:16.0:
	Modem chipset not detected on
NAME="Communication controller: Intel Corporation Panther Point MEI Controller #1 "
CLASS=0780
PCIDEV=8086:1e3a
SUBSYS=8086:2040
IRQ=54
HDA2=00:1b.0
HDA2=01:00.1

 For candidate modem in:  00:16.0
   0780 Communication controller: Intel Corporation Panther Point MEI Controller #1 
      Primary device ID:  8086:1e3a
 Support type needed or chipset:	
 

Predictive  diagnostics for card in bus 00:1b.0:
	Modem chipset not detected on
NAME="Audio device: Intel Corporation Panther Point High Definition Audio Controller "
CLASS=0403
PCIDEV=8086:1e20
SUBSYS=8086:2040
IRQ=55

 For candidate modem in:  00:1b.0
   0403 Audio device: Intel Corporation Panther Point High Definition Audio Controller 
      Primary device ID:  8086:1e20
 Support type needed or chipset:	
 

Predictive  diagnostics for card in bus 01:00.1:
	Modem chipset not detected on
NAME="Audio device: Advanced Micro Devices [AMD] nee ATI Device aab0"
CLASS=0403
PCIDEV=1002:aab0
SUBSYS=174b:aab0
IRQ=17

 For candidate modem in:  01:00.1
   0403 Audio device: Advanced Micro Devices [AMD] nee ATI Device aab0
      Primary device ID:  1002:aab0
 Support type needed or chipset:	
 

 Completed candidate modem analyses.

 The base of the UDEV device file system is: /dev/.udev

 Versions adequately match for the compiler installed: 4.6.3
             and the compiler used in kernel assembly: 4.6

 linux-headers-3.2.0-38-generic resources needed for compiling are not manifestly ready!     <------------------ ?!?

 If compiling is necessary packages must be installed, providing:                               <------------------ ?!?
	 linux-headers-3.2.0-38-generic


If a driver compilation fails, with message including some lack of some FileName.h (stdio.h for example), then
Some additional kernel-header files need installation to /usr/include. The minimal additional packages are libc6-dev
and any of its dependents, under Ubuntu linux-libc-dev

If an alternate ethernet connection is available,
$  apt-get update
$  apt-get -s install linux-kernel-devel
will install needed packages.
For Debian/Ubuntu related distributions, run the following command to display the needed package list:
                                                                                                                                                 <------------------ ?
Otherwise packages have to be found through http://packages.ubuntu.com
Once downloaded and transferred into a Linux partition,
they can be installed alltogether with:
$ sudo dpkg -i *.deb


Checking pppd properties:
	-rwsr-sr-- 1 root dip 325744 Feb  4  2011 /usr/sbin/pppd

In case of an "error 17" "serial loopback" problem, see:
    http://linmodems.technion.ac.il/linmodems/archive-sixth/msg02637.html

To enable dialout without Root permission do:
	$ su - root  (not for Ubuntu)
        sudo chmod a+x /usr/sbin/pppd
or under Ubuntu related Linuxes
	sudo chmod a+x /usr/sbin/pppd

Checking settings of:	/etc/ppp/options
asyncmap 0
noauth
crtscts
lock
hide-password
modem
lcp-echo-interval 30
lcp-echo-failure 4
noipx

In case of a message like:
   Warning: Could not modify /etc/ppp/pap-secrets: Permission denied
see http://linmodems.technion.ac.il/bigarch/archive-sixth/msg04656.html

For guidance on FAX usage, get from http://linmodems.technion.ac.il/packages/  get faxing.tar.gz
It has samples for a modem using port /dev/ttySL0, which must be changed to match your modem's port.

Read Modem/DOCs/YourSystem.txt concerning other COMM channels: eth0
Which can interfere with Browser naviagation.

 Don't worry about the following, it is for experts should trouble shooting be necessary.
==========================================================

 Checking for modem support lines:
 --------------------------------------
     /device/modem symbolic link:   
slmodemd created symbolic link /dev/ttySL0:                                                              <------------------ ? not ttyS4 ?
     Within /etc/udev/ files:

     Within /etc/modprobe.conf files:
/etc/modprobe.d/alsa-base.conf:options snd-atiixp-modem index=-2
/etc/modprobe.d/alsa-base.conf:options snd-via82xx-modem index=-2
/etc/modprobe.d/blacklist-modem.conf:# Uncomment these entries in order to blacklist unwanted modem drivers
/etc/modprobe.d/blacklist-modem.conf:# blacklist snd-atiixp-modem
/etc/modprobe.d/blacklist-modem.conf:# blacklist snd-via82xx-modem
     Within any ancient /etc/devfs files:

     Within ancient kernel 2.4.n /etc/module.conf files: