SCCP Phone cannot receive calls

[Alessandro Tischer]

Hello everyone, I have a problem completing the setup of a Cisco phone.

This is what I did:

• Set up a Raspbx
• Configured 3 SIP softphones.
• Added a Cisco 6901 SCCP phone as following:
• Installed SCCP module with:
  apt-get update apt-get install chan-sccp-ast16
• Set pbx ip address as tftp server on the phone
  Added to the tftp root folder the Configuration XML (named with SEPMAC.cnf.xml) as following:

<device>
    <devicePool>
        <callManagerGroup>
            <members>
                <member priority="0">
                    <callManager>
                        <ports>
                            <ethernetPhonePort>2000</ethernetPhonePort>
                        </ports>
                        <processNodeName>192.168.188.10</processNodeName>
                    </callManager>
                </member>
            </members>
        </callManagerGroup>
    </devicePool>
    <versionStamp>{2020-19-11-001}</versionStamp>
    <userLocale>
        <name>Italian_Italy</name>
        <langCode>it</langCode>
    </userLocale>
    <networkLocale>Italy</networkLocale>
    <idleTimeout>0</idleTimeout>
    <authenticationURL/>
    <directoryURL/>
    <idleURL/>
    <informationURL/>
    <messagesURL/>
    <proxyServerURL/>
    <servicesURL/>
    <webAccess>"0"</webAccess>
</device>

• Configured sccp.conf in /etc/asterisk/ as following:

[general]
servername = SCCP
keepalive = 60
debug = 1
context = from-internal
dateformat = M.D.YA
bindaddr = 192.168.188.10
port = 2000
disallow = all
allow = ulaw
allow = alaw
firstdigittimeout = 16
digittimeout = 5
autoanswer_ring_time = 1
autoanswer_tone = 0x32
remotehangup_tone = 0x32
transfer_tone = 0
transfer_on_hangup = on
callwaiting_tone = 0x2d
musicclass=default
language=en
deny=0.0.0.0/0.0.0.0
permit = 192.168.188.0/255.255.255.0
nat = on
dndFeature = on
sccp_tos = 0x68
sccp_cos = 4
audio_tos = 0xB8
audio_cos = 6
video_tos = 0x88
video_cos = 5
echocancel = on
silencesuppression = off
private = on
callanswerorder = oldestfirst
directed_pickup_modeanswer = on

[SEP0CD0F821DDE4] # Cisco IP Phone MAC
type = device
devicetype = 6901 # Device Number
description = 115 # Extension Number
button = line, 115, default
button = line, 111

[115] # Extension Number
type = line
mailbox = 115@from-internal
label = 115 # Name to appear
cid_num = 115
context = from-internal

Now the Cisco phone can call other available extensions (any of the three softphones), but I get this log from asterisk whenever I start a call (log begins when I lift the hook):

SEE ATTACHMENT

And I cannot make calls from any SIP to the Cisco phone.

Do you guys have any advice?
Thank you very much

[gdesilva]

What version of SIP are you running on the phones? Are the Cisco phones registered?

[Alessandro Tischer]

Sorry, what do you mean? I'm not very familiar with this world...

[gdesilva]

Hi Alessandro, Cisco handsets are loaded with SCCP protocol stack to work with Cisco Call Manager. If you want to use it to run as a SIP phone you would need to load the Cisco SIP images on these phones. I haven't had anything to do with 6901 handsets - I use 7970G and 7960 handsets and I had to manually load the Cisco SIP POS3-8-12-00 software image before I could connect to a Raspbx system.

It looks like one can run SCCP protocol on Asterisk but I have never done it and cannot comment on it. You may want to check out the following link

https://www.modulis.com/blog/using-sccp-phones-with-asterisk/

Not sure whether the modules needed for SCCP support are available for Raspbx though - perhaps someone who has tried it will comment on this.

EDIT: details are given here https://sourceforge.net/p/raspbx/discussion/general/thread/5f0bedbe/