Remote extension voice issue in

#1

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Hi all
PFA,this my network architecture

2 offices

-----------------Main office---------------------
WAN 1 ----directly from ISP
LAN
-192.168.10.0/24
-192.168.20.0/24
-192.168.50.0/24

UCM 6302. . - 192.168.20.163
Local extension ip phones in 192.168.20.0/24

---------------Branch Office--------------
WAN 1- -------192.168.50.2/32
WAN 2- directly from isp (router mode failover)
LAN
-192.168.30.0/24

Branch office 7 ip phones GXP1625 (frimware upto date)

Phone configuration
Main server :192.168.20.163:5061 sip tls enabled
Secondary server. : gdsm remote url
Stun server : address used as per GDMS page,port restricted cone nat

Current status

---------------Working fine-----------------------------
Local extension <-> Local extension
<-> Wave app on main office network
<-> Wave app on mobile network
<-> Wave app on remote branch office wifi network
-------------Some time problem no audio,call drops------+++++
Remote extension <-> Local extension
<-> Wave app on main office network
<-> Wave app on mobile network
<-> Wave app on remote branch office

My querys are

  1. How do i resolve this issue?
  2. If i restarted the remote extension phone ,initially it works but after few hours all problems will starts again
  3. In UCM 6302 SIP settings under NAT what all local ip do I need to enter? or any other area.

Both routers SIP ALG disabled
Main office to branch office direct fiber lease line

#2

https://forums.grandstream.com/t/remote-extension-configuration-ucm-6302/51570

you have already opened a post the same and I have already answered you on what to do,
you do not need to open another identical one, it just creates confusion,
if you still find problems open a ticket at grandstream assistance:

#3

Put the local lan segments of both the remote and main office on which the phones and pbx reside in the local lan settings

#4

Thanks the problems has been resolved

#5