Engenius Durafon SIP, SIP capabilities in Mivoice Business V8

[Domrac45]

here's my current configurations:

Call Routing and Administration Options
   Outbound Proxy Server      
   Replace System based with Device based In-Call Features      Yes
   Allow MWI Notifications without Subscription      No
   Enable Digit Collection In Busy Or Alerting State      No

Allow Device To Use Multiple Active M-Lines      Yes
Allow Using UPDATE For Early Media Renegotiation      Yes
AVP Only Device      Yes
Enable Mitel Proprietary SDP      Yes
Force sending SDP in initial Invite message      No
Ignore SDP Answers in Provisional Responses      No
Limit to one Offer/Answer per INVITE      No
Prevent SDP Renegotiation If Peer Initiated Hold      Yes
Prevent the Use of IP Address 0.0.0.0 in SDP Messages      Yes
Renegotiate SDP To Enforce Symmetric Codec      No
Repeat SDP Answer If Duplicate Offer Is Received      No
Send Answer only after renegotiation is complete      No
Suppress Use of SDP Inactive Media Streams      No

Allow Display Update      Yes
Disable Reliable Provisional Responses      No
Disable Use of User-Agent and Server Headers      No
Fail REFER To Keep Call Active On Mid-Call Feature      No
If TLS use 'sips:' Scheme      No
Multilingual Name Display      No
Override Auto-Answer Headers      No
Override Auto-Answer Headers With      
Remove Anonymous User      No
Require Reliable Provisional Responses on Outgoing Calls      No
Suppress Redirection Headers      No
Use P-Asserted Identity Header      Yes
Use user=phone      No

Registration Period Minimum      300
Session Timer      90
Session Timer: Local as Refresher      No
Subscription Period      3600
Subscription Period Minimum      300
Subscription Period Refresh (%)      80
Invite Ringing Response Timer      4

On the SIP module, I'v got green light, I Ping my PBX, able to make and receive calls for couple of minutes and it stops working. There's something somewhere been trying to figure it out for days...

[lundah]

Check the timers in the SIP Device Capabilities versus what's set in the endpoint itself. If it works for <5 minutes, check the Registration Timer and make sure it matches on both sides, that's the most likely culprit. If that still doesn't work, take a packet capture and look for any interesting SDP packets when it stops working.

[Domrac45]

Ohhhhhh makes so much sense, I had unmatching number for the timers. I corrected it remotly, can wait for tomorrow morning.