Il martedì 10 agosto 2010 12:33:21 Tony Graziano ha scritto:
> The media server supports g722 as well as g771u/a. What would be
> interesting to know is why in your case you need to change the order of
> codecs. During a media negotiation, at least several codecs should be
> offered before an agreement is made.
I made several tests between 4 phones: two with G722 as first codec and two
with G711u.
Moh works only with the two phones having G722 as first codec.
> Internally it should never be an issue. On gateway (or siptrunk) calls, the
> question is whether the carrier/gateway is limiting the codecs being
> offered.
On outgoing calls moh works with all four phones.
On incoming calls moh doesn't work at all.
Moreover in both case retrieving the line the voice flows only more from sipx
to the caller. Of course this is the worst problem because it makes
impossible to terminate a call transfer.
I suspect some misconfiguration in the DNS.
For example: the sip domain is "skoer.it" and the proxy server
is "sip.skoer.it".
As suggested I set a dual zone DNS with the same fqhn pointing to different ip
viewed from inside rather then outside.
If I had to set sip:[email protected] (the proxy address instead of the
domain) on snom phones, how can I do the same for the addresses viewed by
ITSP?
> Can you explain if there is a difference between codecs internally versus
> through the PSTN? What version fimrware are you using on your phones?
In both case the music is coded by the sipx server. The difference should be
that ITSP can decode it while the snom phones with G711 can't. I guess that
they don't renegotiate the codec when go in hold status.
The phones are snom300 and the firmware is the 7.3.30, the last one before the
release 8 which is not well supported by Sipx.
> A call trace might help to see if there is a general issue with
> negotiation. I am not a snom user (I only have m3's), so I don't have
> direct experience to relate to this.
Attached there is a trace retrieved from the phone that doesn't play the
music.
--
Claudio Succa
PERTEL - Torino - Italy
+39-011-19826800
http://www.pertel.it
http://www.uniassist.it
Received from udp:192.168.168.100:5060 at 10/8/2010 16:04:35:589 (1317 bytes):
INVITE sip:[email protected]:5060;line=pa22nwd3;x-sipX-nonat SIP/2.0
Via: SIP/2.0/UDP 192.168.168.100;branch=z9hG4bK-XX-2741aZ3pjYLntHDH``wtaHaaKA
Via: SIP/2.0/UDP
192.168.168.128:5060;branch=z9hG4bK-dgxgjlbtvrmb;rport=5060;id=6864-47
From: <sip:[email protected];user=phone>;tag=ycksrcvl8n
To: <sip:[email protected]>;tag=44zojbq90o
Call-Id: 3c267d9b3df2-u8stsbbnktjd
Cseq: 5 INVITE
Max-Forwards: 20
Contact: <sip:[email protected]:5060;line=1jey4ajq;x-sipX-nonat>;reg-id=1
P-Key-Flags: keys="3"
User-Agent: snom300/7.3.30
Accept: application/sdp
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK,
MESSAGE, INFO
Allow-Events: talk, hold, refer, call-info
Supported: timer, replaces, from-change
Require: timer
Session-Expires: 3600;refresher=uac
Min-Se: 90
Content-Type: application/sdp
Content-Length: 384
Date: Tue, 10 Aug 2010 14:04:35 GMT
X-Sipx-Handled: X192.168.168.100-83.211.101.33
v=0
o=root 315510998 315511004 IN IP4 192.168.168.128
s=call
c=IN IP4 0.0.0.0
t=0 0
m=audio 64978 RTP/AVP 0 8 9 99 3 18 4 101
a=direction:both
a=rtpmap:0 pcmu/8000
a=rtpmap:8 pcma/8000
a=rtpmap:9 g722/8000
a=rtpmap:99 g726-32/8000
a=rtpmap:3 gsm/8000
a=rtpmap:18 g729/8000
a=rtpmap:4 g723/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:60
a=sendonly
Sent to udp:192.168.168.100:5060 at 10/8/2010 16:04:35:666 (1095 bytes):
SIP/2.0 200 Ok
Via: SIP/2.0/UDP 192.168.168.100;branch=z9hG4bK-XX-2741aZ3pjYLntHDH``wtaHaaKA
Via: SIP/2.0/UDP
192.168.168.128:5060;branch=z9hG4bK-dgxgjlbtvrmb;rport=5060;id=6864-47
From: <sip:[email protected];user=phone>;tag=ycksrcvl8n
To: <sip:[email protected]>;tag=44zojbq90o
Call-ID: 3c267d9b3df2-u8stsbbnktjd
CSeq: 5 INVITE
Contact: <sip:[email protected]:5060;line=pa22nwd3>;reg-id=1
Require: timer
Session-Expires: 3600;refresher=uac
User-Agent: snom300/7.3.30
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK,
MESSAGE, INFO
Allow-Events: talk, hold, refer, call-info
Supported: timer, replaces, from-change
Content-Type: application/sdp
Content-Length: 394
v=0
o=root 1029689575 1029689580 IN IP4 192.168.168.127
s=call
c=IN IP4 192.168.168.127
t=0 0
m=audio 63528 RTP/AVP 0 8 9 99 3 18 4 101
a=rtpmap:0 pcmu/8000
a=rtpmap:8 pcma/8000
a=rtpmap:9 g722/8000
a=rtpmap:99 g726-32/8000
a=rtpmap:3 gsm/8000
a=rtpmap:18 g729/8000
a=rtpmap:4 g723/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:60
a=direction:both
a=recvonly
Received from udp:192.168.168.100:5060 at 10/8/2010 16:04:35:725 (1317 bytes):
INVITE sip:[email protected]:5060;line=pa22nwd3;x-sipX-nonat SIP/2.0
Via: SIP/2.0/UDP 192.168.168.100;branch=z9hG4bK-XX-2741aZ3pjYLntHDH``wtaHaaKA
Via: SIP/2.0/UDP
192.168.168.128:5060;branch=z9hG4bK-dgxgjlbtvrmb;rport=5060;id=6864-47
From: <sip:[email protected];user=phone>;tag=ycksrcvl8n
To: <sip:[email protected]>;tag=44zojbq90o
Call-Id: 3c267d9b3df2-u8stsbbnktjd
Cseq: 5 INVITE
Max-Forwards: 20
Contact: <sip:[email protected]:5060;line=1jey4ajq;x-sipX-nonat>;reg-id=1
P-Key-Flags: keys="3"
User-Agent: snom300/7.3.30
Accept: application/sdp
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK,
MESSAGE, INFO
Allow-Events: talk, hold, refer, call-info
Supported: timer, replaces, from-change
Require: timer
Session-Expires: 3600;refresher=uac
Min-Se: 90
Content-Type: application/sdp
Content-Length: 384
Date: Tue, 10 Aug 2010 14:04:35 GMT
X-Sipx-Handled: X192.168.168.100-83.211.101.33
v=0
o=root 315510998 315511004 IN IP4 192.168.168.128
s=call
c=IN IP4 0.0.0.0
t=0 0
m=audio 64978 RTP/AVP 0 8 9 99 3 18 4 101
a=direction:both
a=rtpmap:0 pcmu/8000
a=rtpmap:8 pcma/8000
a=rtpmap:9 g722/8000
a=rtpmap:99 g726-32/8000
a=rtpmap:3 gsm/8000
a=rtpmap:18 g729/8000
a=rtpmap:4 g723/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:60
a=sendonly
Sent to udp:192.168.168.100:5060 at 10/8/2010 16:04:35:726 (1095 bytes):
SIP/2.0 200 Ok
Via: SIP/2.0/UDP 192.168.168.100;branch=z9hG4bK-XX-2741aZ3pjYLntHDH``wtaHaaKA
Via: SIP/2.0/UDP
192.168.168.128:5060;branch=z9hG4bK-dgxgjlbtvrmb;rport=5060;id=6864-47
From: <sip:[email protected];user=phone>;tag=ycksrcvl8n
To: <sip:[email protected]>;tag=44zojbq90o
Call-ID: 3c267d9b3df2-u8stsbbnktjd
CSeq: 5 INVITE
Contact: <sip:[email protected]:5060;line=pa22nwd3>;reg-id=1
Require: timer
Session-Expires: 3600;refresher=uac
User-Agent: snom300/7.3.30
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK,
MESSAGE, INFO
Allow-Events: talk, hold, refer, call-info
Supported: timer, replaces, from-change
Content-Type: application/sdp
Content-Length: 394
v=0
o=root 1029689575 1029689580 IN IP4 192.168.168.127
s=call
c=IN IP4 192.168.168.127
t=0 0
m=audio 63528 RTP/AVP 0 8 9 99 3 18 4 101
a=rtpmap:0 pcmu/8000
a=rtpmap:8 pcma/8000
a=rtpmap:9 g722/8000
a=rtpmap:99 g726-32/8000
a=rtpmap:3 gsm/8000
a=rtpmap:18 g729/8000
a=rtpmap:4 g723/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:60
a=direction:both
a=recvonly
Received from udp:192.168.168.100:5060 at 10/8/2010 16:04:35:831 (519 bytes):
ACK sip:[email protected]:5060;line=pa22nwd3;x-sipX-nonat SIP/2.0
Via: SIP/2.0/UDP 192.168.168.100;branch=z9hG4bK-XX-2757TP96lh8AqxMKlxZ0zdF7oA
Via: SIP/2.0/UDP 192.168.168.128:5060;branch=z9hG4bK-vzs1uta1dgsq;rport=5060
From: <sip:[email protected];user=phone>;tag=ycksrcvl8n
To: <sip:[email protected]>;tag=44zojbq90o
Call-Id: 3c267d9b3df2-u8stsbbnktjd
Cseq: 5 ACK
Max-Forwards: 20
Contact: <sip:[email protected]:5060;line=1jey4ajq;x-sipX-nonat>;reg-id=1
Content-Length: 0
Date: Tue, 10 Aug 2010 14:04:36 GMT
Received from udp:192.168.168.100:5060 at 10/8/2010 16:04:35:920 (519 bytes):
ACK sip:[email protected]:5060;line=pa22nwd3;x-sipX-nonat SIP/2.0
Via: SIP/2.0/UDP 192.168.168.100;branch=z9hG4bK-XX-275aRjPUhZ595A4bc5JDLIZv8g
Via: SIP/2.0/UDP 192.168.168.128:5060;branch=z9hG4bK-vzs1uta1dgsq;rport=5060
From: <sip:[email protected];user=phone>;tag=ycksrcvl8n
To: <sip:[email protected]>;tag=44zojbq90o
Call-Id: 3c267d9b3df2-u8stsbbnktjd
Cseq: 5 ACK
Max-Forwards: 20
Contact: <sip:[email protected]:5060;line=1jey4ajq;x-sipX-nonat>;reg-id=1
Content-Length: 0
Date: Tue, 10 Aug 2010 14:04:36 GMT
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