[YMCS/YDMP Free Trial Program]Yealink would like to offer Free Trial Program of Yealink device management service for our current eligible customers. You can see the details below.
https://www.yealink.com/ydmp-freetrial-2020


Post Reply 
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
HOLD SIP message problem
Author Message
farhad.jalali@gmail.com Offline
Junior Member
**

Posts: 3
Joined: Mar 2014
Reputation: 0
Post: #1
HOLD SIP message problem
My T20 IP-Phone doesn't Ack to the OK message I passed to it while HOLD.

IP-Phone[192.168.1.90:5062] -> SIP Server[192.168.1.250:6000]

INVITE sip:09125170869@192.168.1.250:6000 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.90:5062;branch=z9hG4bK1308374903
From: "a7bf0b2e-41d2-44bf-984e-48535a93009b@192.168.1.250" <sip:800@192.168.1.250>;tag=733854603
To: "Jalali.Mobile" <sip:09125170869@192.168.1.250>;tag=1929990922
Call-ID: a7bf0b2e-41d2-44bf-984e-48535a93009b@192.168.1.250
CSeq: 2 INVITE
Contact: <sip:800@192.168.1.90:5062>
Content-Type: application/sdp
Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE
Max-Forwards: 70
User-Agent: Yealink SIP-T20P 9.61.0.70
Allow-Events: talk,hold,conference,refer,check-sync
Content-Length: 194

v=0
o=- 20015 20016 IN IP4 192.168.1.90
s=SDP data
c=IN IP4 0.0.0.0
t=0 0
m=audio 11788 RTP/AVP 8 101
a=rtpmap:8 PCMA/8000
a=fmtp:101 0-15
a=rtpmap:101 telephone-event/8000
a=sendonly


SIP Server -> IP-Phone:

SIP/2.0 200 Ok
Via: SIP/2.0/UDP 192.168.1.90:5062;branch=z9hG4bK1308374903;rport=5062
From: "a7bf0b2e-41d2-44bf-984e-48535a93009b@192.168.1.250" <sip:800@192.168.1.250>;tag=733854603
To: "Jalali.Mobile" <sip:09125170869@192.168.1.250>;tag=1929990922
Call-ID: a7bf0b2e-41d2-44bf-984e-48535a93009b@192.168.1.250
CSeq: 2 INVITE
Contact: <sip:09125170869@192.168.1.250>
Content-Type: application/sdp
Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE

User-Agent: Yealink SIP-T20P 9.61.0.70
Allow-Events: talk,hold,conference,refer,check-sync
Content-Length: 211

v=0
o=- 3517046709 3517046709 IN IP4 192.168.1.250
s=SDP data
c=IN IP4 192.168.1.250
t=0 0
m=audio 16158 RTP/AVP 8 101
a=rtpmap:8 PCMA/8000
a=fmtp:101 0-15
a=rtpmap:101 telephone-event/8000

a=recvonly




Then IP-Phone doesn't send ACK. and because of that the UnHold doesn't work.
03-17-2014 12:32 PM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Post Reply 


Messages In This Thread
HOLD SIP message problem - farhad.jalali@gmail.com - 03-17-2014 12:32 PM

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  "On hook" event problem Rafal 6 1,766 03-26-2020 03:35 AM
Last Post: Normfred
  You are not authorized to access the web interface message... starion 3 1,094 11-28-2019 04:05 AM
Last Post: starion
  T28P LDAP Problem oguzhan 0 400 11-14-2019 10:40 AM
Last Post: oguzhan
  Problem with low-level firmware of telephone T21 E2 protaganist 5 3,829 01-21-2019 11:50 AM
Last Post: protaganist
  T21P dial problem oguzhan 2 2,255 06-20-2018 09:27 AM
Last Post: oguzhan
  T21P-E2 sends a CANCEL to put a call in hold Diego Juan 0 1,381 03-23-2018 02:52 PM
Last Post: Diego Juan
  Known problem - redial from history Rafal 4 3,238 03-21-2018 06:24 AM
Last Post: Rafal
  Problem with alert BLF in T27P hercross 5 3,518 03-01-2018 05:58 PM
Last Post: Evan_Yealink
  Yealink T21P E2 Communication Problem Windland_Support 1 3,392 08-16-2017 02:44 AM
Last Post: Kevin_Yealink
  SIP T22P Problem liamretrams 2 4,090 06-01-2017 11:22 AM
Last Post: wcolato

Forum Jump:


User(s) browsing this thread: 1 Guest(s)

Contact Us   Yealink   Return to Top   Return to Content   Lite (Archive) Mode   RSS Syndication