I have a Nortel CS1000M-MG PBX connected to my Cisco 2911 gateway using 6 FXO ports.  When the PSTN user hangs up (PSTN->Nortel->Cisco), I do not get a SIP BYE from the Cisco 2911.  I see through various debugs (debug vpm signal, debug vpm all, debug vpm dsp, debug voip vtsp all,debug voip ccapi all) that the disocnnect is being interpreted correctly by (some of) the gateway, but no SIP message is generated and the voice port light stays on.  Any idea what I should do to debug this issue?   For example, I see (excerpted): 002158: Nov  4 18:29:47.824 UTC: htsp_process_event: [0/0/0, FXOLS_CONNECT, E_DSP_SIG_1100]fxols_offhook_disc 002159: Nov  4 18:29:47.824 UTC: htsp_timer2 - 350 msec 002162: Nov  4 18:29:48.176 UTC: htsp_process_event: [0/0/0, FXOLS_CONNECT, E_HTSP_EVENT_TIMER2]fxols_disc_confirm 002170: Nov  4 18:29:48.176 UTC: //12695/48A18893B2C6/VTSP:(0/0/0):-1:1:1/vtsp_set_release_source:    Release Direction=PSTN, Release Source=Calling Party-PSTN 002171: Nov  4 18:29:48.176 UTC: //12695/48A18893B2C6/VTSP:(0/0/0):-1:1:1/vtsp_cc_call_disconnected: 002172: Nov  4 18:29:48.176 UTC: //12695/48A18893B2C6/VTSP:(0/0/0):-1:1:1/vtsp_cc_call_disconnected:    Cause Value=16 002190: Nov  4 18:29:48.176 UTC: //12695/48A18893B2C6/CCAPI/ccCallDisconnect:    Cause Value=16, Tag=0x0, Call Entry(Previous Disconnect Cause=0, Disconnect Cause=16) 002376: Nov  4 18:29:51.872 UTC: htsp_dsp_message: SEND/RESP_SIG_STATUS: state=0x4 timestamp=0 systime=8904309 002377: Nov  4 18:29:51.872 UTC: htsp_process_event: [0/0/0, FXOLS_ONHOOK, E_DSP_SIG_0100]         ... View more

My 2911 gateway is failing the handshake, and I am trying to figure out the best way to debug it.  I turned on all the crypto PKI debugging, but I don't get any information telling me the reason for the failure.  Is there any other debugging I can turn on to  get more information?  Thanks! ... View more

Is there any way in the Cisco gateways to have the SIP engine only send INVITEs if it matches an extension exactly (e.g., if I have extension 123 and someone dials extension 1234 which does not exist, I do not want extension 123 to ring).  I am also having a problem with the pilot number for hunt groups in the same way.  If I have a pilot 123 in one huntgroup and in another huntgroup extension 1234 that is currently off line (not registered), when the huntgroup with 1234 is searched, when it gets to 1234 it will cause huntgroup associated with pilot 123 to get searched (and stop searching on the original huntgroup). ... View more

I am using the 2900 series gateways standalone and not in CME mode with either FXO ports or T1/E1 and a non-Cisco SIP phone.  Can I use vertical service codes or feature access codes to do 3-way conferencing and call transfer, and if so, how do I configure it on the gateway? ... View more

I try to follow the instructions in the Cisco documentation for configuring to use TLS, but neither the "crypto signaling" command under sip-ua nor the "session transport tcp tls" (either under voice services voip sip or in a dial peer command) are available.  What might I be missing to make these commands available so I can use TLS?  I am running "c2800nm-ipvoicek9-mz.150-1.M4.bin" version of the IOS, and all my configuration occurs via CLI on the gateway. ... View more