opensips服务器外网通讯失败

[JamesVSKobe]

求助各位大侠！！！我在本地服务器局域网上面搭建了一个opensips服务器（ip和端口已经映射到外网），搭建完成后手机端（linphone）和pc端（x-lite）都可以正常登陆，也可以互相通话，但是手机端使用3G网络不能登录，也不能语音通话，于是后来我又在服务器上面搭建了RTPProxy，然后pc端可以呼通手机端（wifi和3g、4g都可以），但是手机端还是无法打通PC端，手机与手机也不能同（互相拨号没有反应），并且服务器log如下。请问各位大侠这个现象到底是为什么？如何解决呢？

09:02:24 /sbin/opensips[22599]: last message repeated 4 times
Nov 3 09:02:24 android-dev /sbin/opensips[22599]: ERROR:core:proto_udp_send: sendto(sock,0x7fe03b319908,1478,0,0x7fe03b315480,16): Resource temporarily unavailable(11)
Nov 3 09:02:24 /sbin/opensips[22599]: last message repeated 7 times
Nov 3 09:02:24 android-dev /sbin/opensips[22599]: ERROR:core:proto_udp_send: sendto(sock,0x7fe03b31e4a0,1597,0,0x7fe03b31a138,16): Resource temporarily unavailable(11)
Nov 3 09:02:24 /sbin/opensips[22599]: last message repeated 5 times
Nov 3 09:02:24 android-dev /sbin/opensips[22599]: ERROR:core:proto_udp_send: sendto(sock,0x7fe03b325518,617,0,0x7fe03b31ecf0,16): Resource temporarily unavailable(11)
Nov 3 09:02:24 /sbin/opensips[22599]: last message repeated 14 times
Nov 3 09:02:24 android-dev /sbin/opensips[22599]: ERROR:core:proto_udp_send: sendto(sock,0x7fe03b3257a0,1139,0,0x7fe03b320740,16): Resource temporarily unavailable(11)
Nov 3 09:02:24 android-dev /sbin/opensips[22599]: ERROR:core:proto_udp_send: sendto(sock,0x7fe03b32c8e8,493,0,0x7fe03b325e28,16): Resource temporarily unavailable(11)
Nov 3 09:02:24 /sbin/opensips[22599]: last message repeated 6 times
Nov 3 09:02:24 android-dev /sbin/opensips[22599]: ERROR:core:proto_udp_send: sendto(sock,0x7fe03b3303f0,1411,0,0x7fe03b328a18,16): Resource temporarily unavailable(11)
Nov 3 09:02:24 /sbin/opensips[22599]: last message repeated 3 times
Nov 3 09:02:24 android-dev /sbin/opensips[22599]: ERROR:core:proto_udp_send: sendto(sock,0x7fe03b334978,1345,0,0x7fe03b330b88,16): Resource temporarily unavailable(11)
Nov 3 09:02:24 /sbin/opensips[22599]: last message repeated 2 times
Nov 3 09:02:24 android-dev /sbin/opensips[22599]: ERROR:core:proto_udp_send: sendto(sock,0x7fe03b338118,737,0,0x7fe03b3350d0,16): Resource temporarily unavailable(11)
Nov 3 09:02:24 /sbin/opensips[22599]: last message repeated 14 times
Nov 3 09:02:24 android-dev /sbin/opensips[22599]: ERROR:core:proto_udp_send: sendto(sock,0x7fe03b343798,3527,0,0x7fe03b33c8a8,16): Resource temporarily unavailable(11)
Nov 3 09:02:28 /sbin/opensips[22599]: last message repeated 4 times
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: WARNING:core:fm_malloc: Not enough free memory, will attempt defragmentation
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: ERROR:tm:relay_reply: no more share memory
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: WARNING:core:fm_malloc: Not enough free memory, will attempt defragmentation
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: ERROR:tm:_reply_light: failed to allocate shmem buffer
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: WARNING:core:fm_malloc: Not enough free memory, will attempt defragmentation
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: ERROR:tm:relay_reply: no more share memory
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: WARNING:core:fm_malloc: Not enough free memory, will attempt defragmentation
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: ERROR:tm:_reply_light: failed to allocate shmem buffer
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: WARNING:core:fm_malloc: Not enough free memory, will attempt defragmentation
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: ERROR:tm:relay_reply: no more share memory
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: WARNING:core:fm_malloc: Not enough free memory, will attempt defragmentation
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: ERROR:tm:_reply_light: failed to allocate shmem buffer
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: WARNING:core:fm_malloc: Not enough free memory, will attempt defragmentation
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: ERROR:tm:relay_reply: no more share memory
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: WARNING:core:fm_malloc: Not enough free memory, will attempt defragmentation
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: ERROR:tm:_reply_light: failed to allocate shmem buffer
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: WARNING:core:fm_malloc: Not enough free memory, will attempt defragmentation
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: ERROR:tm:relay_reply: no more share memory
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: WARNING:core:fm_malloc: Not enough free memory, will attempt defragmentation
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: ERROR:tm:_reply_light: failed to allocate shmem buffer
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: WARNING:core:fm_malloc: Not enough free memory, will attempt defragmentation
Nov 3 09:02:28 android-dev /sbin/opensips[22598]: ERROR:tm:relay_reply: no more share memory