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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>All,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Trying
to get DTMF to pass to an Asterisk VM server from the PSTN with no love. Using
H323 PSTN gateways running 12.4(24)T1, ISDN PRI’s, CUCM 7.02, with a SIP
trunk to Asterisk. This is all g729 as well. I can dial into
Asterisk internally and DTMF works fine, but I can’t get it to pass DTMF
from the PSTN. The call goes though to Asterisk fine from the PSTN, but doesn’t
seem to be passing DTMF. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>sccp
ccm group 1<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> associate
ccm 1 priority 1<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> associate
ccm 2 priority 2<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> associate
profile 1 register softmtp2<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>!<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>dspfarm
profile 1 mtp <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> codec
g711ulaw<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> maximum
sessions software 50<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> associate
application SCCP<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>sh
sccp<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>SCCP
Admin State: UP<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Gateway
Local Interface: GigabitEthernet0/0.101<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>
IPv4 Address: 10.1.101.3<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>
Port Number: 2000<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>IP
Precedence: 5<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>User
Masked Codec list: None<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Call
Manager: 10.1.101.11, Port Number: 2000<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>
Priority: 1, Version: 7.0, Identifier: 1<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Call
Manager: 10.1.101.10, Port Number: 2000<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>
Priority: 2, Version: 7.0, Identifier: 2<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>MTP
Oper State: ACTIVE - Cause Code: NONE<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Active
Call Manager: 10.1.101.11, Port Number: 2000<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>TCP
Link Status: CONNECTED, Profile Identifier: 1<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Reported
Max Streams: 100, Reported Max OOS Streams: 0<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Supported
Codec: g711ulaw, Maximum Packetization Period: 30<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Supported
Codec: rfc2833 dtmf, Maximum Packetization Period: 30<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Supported
Codec: rfc2833 pass-thru, Maximum Packetization Period: 30<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Supported
Codec: inband-dtmf to rfc2833 conversion, Maximum Packetization Period: 30<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>From
what I understand the IOS software MTP should be what I need to allow RFC2833
and h245-signal (tried h245-alphanumeric as well) to communicate, even with
g729. The IOS SW MTP is registered and configured, but DTMF is still not
being passed. The IOS software MTP is in the MRG/MRGL for all device pools
for all devices. I’ve even put all the other media resources in a temp
MRG to ensure only the software MTP is able to be invoked (it’s all g729
satellite sccp analog phones so no moh/annunciator or anything). I do a ‘deb
sccp packet’ on the gateway with the IOS MTP, but I get nothing when
sending DTMF. In RTM I don’t see any MTP resources being used on
the IOS MTP. I’ve had the SIP trunk configured with MTP required
checked and unchecked (although CM should still dynamically allocate and MTP
for DTMF if needed even if it is not checked), RFC2833 set as the DTMF type and
G729/G729a as the codec on the trunk. It seems like the MTP is not being
invoked at all, but I’m not sure why or how to absolutely prove that it
is or isn’t. So far I don’t see any attempts being made to
invoke it by looking at RTM or ‘deb sccp packet’. I don’t
have access to the Asterisk box (and wouldn’t know what to do if I did),
but it works fine internally so I’m pretty sure the problem is with two DTFM
types needing an MTP. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Any
suggestions or insight?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Thanks!<br>
<br>
Keith <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
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