diff --git a/addons/chan_mobile.c b/addons/chan_mobile.c
index 240c2d4ee6..c77ca7aee1 100644
--- a/addons/chan_mobile.c
+++ b/addons/chan_mobile.c
@@ -102,7 +102,7 @@ struct adapter_pvt {
 	char id[31];					/* the 'name' from mobile.conf */
 	bdaddr_t addr;					/* adddress of adapter */
 	unsigned int inuse:1;				/* are we in use ? */
-	unsigned int alignment_detection:1;		/* do alignment detection on this adpater? */
+	unsigned int alignment_detection:1;		/* do alignment detection on this adapter? */
 	struct io_context *io;				/*!< io context for audio connections */
 	struct io_context *accept_io;			/*!< io context for sco listener */
 	int *sco_id;					/*!< the io context id of the sco listener socket */
@@ -2006,7 +2006,7 @@ static int at_match_prefix(char *buf, char *prefix)
 }
 
 /*!
- * \brief Read an AT message and clasify it.
+ * \brief Read an AT message and classify it.
  * \param rsock an rfcomm socket
  * \param buf the buffer to store the result in
  * \param count the size of the buffer or the maximum number of characters to read
@@ -2176,7 +2176,7 @@ static int hfp_parse_ecav(struct hfp_pvt *hfp, char *buf)
 }
 
 /*!
- * \brief Enable Sony Erricson extensions / indications.
+ * \brief Enable Sony Ericsson extensions / indications.
  * \param hfp an hfp_pvt struct
  */
 static int hfp_send_ecam(struct hfp_pvt *hfp)
@@ -3040,7 +3040,7 @@ static void msg_queue_free_and_pop(struct mbl_pvt *pvt)
 }
 
 /*!
- * \brief Remove all itmes from the queue and free them.
+ * \brief Remove all items from the queue and free them.
  * \param pvt a mbl_pvt structure
  */
 static void msg_queue_flush(struct mbl_pvt *pvt)
@@ -3347,7 +3347,7 @@ static int handle_response_ok(struct mbl_pvt *pvt, char *buf)
 			}
 			break;
 		case AT_CLIP:
-			ast_debug(1, "[%s] caling line indication enabled\n", pvt->id);
+			ast_debug(1, "[%s] calling line indication enabled\n", pvt->id);
 			if (hfp_send_ecam(pvt->hfp) || msg_queue_push(pvt, AT_OK, AT_ECAM)) {
 				ast_debug(1, "[%s] error enabling Sony Ericsson call monitoring extensions\n", pvt->id);
 				goto e_return;
@@ -3567,7 +3567,7 @@ static int handle_response_ciev(struct mbl_pvt *pvt, char *buf)
 			if (pvt->owner) {
 				ast_debug(1, "[%s] hanging up owner\n", pvt->id);
 				if (mbl_queue_hangup(pvt)) {
-					ast_log(LOG_ERROR, "[%s] error queueing hangup, disconnectiong...\n", pvt->id);
+					ast_log(LOG_ERROR, "[%s] error queueing hangup, disconnecting...\n", pvt->id);
 					return -1;
 				}
 			}
@@ -3601,7 +3601,7 @@ static int handle_response_ciev(struct mbl_pvt *pvt, char *buf)
 						handle_response_busy(pvt);
 					}
 					if (mbl_queue_hangup(pvt)) {
-						ast_log(LOG_ERROR, "[%s] error queueing hangup, disconnectiong...\n", pvt->id);
+						ast_log(LOG_ERROR, "[%s] error queueing hangup, disconnecting...\n", pvt->id);
 						return -1;
 					}
 				}
@@ -4431,7 +4431,7 @@ static struct adapter_pvt *mbl_load_adapter(struct ast_config *cfg, const char *
 
 	/* bind the sco listener socket */
 	if (sco_bind(adapter) < 0) {
-		ast_log(LOG_ERROR, "Skipping adapter %s. Error binding audio connection listerner socket.\n", adapter->id);
+		ast_log(LOG_ERROR, "Skipping adapter %s. Error binding audio connection listener socket.\n", adapter->id);
 		goto e_destroy_io;
 	}
 
@@ -4443,7 +4443,7 @@ static struct adapter_pvt *mbl_load_adapter(struct ast_config *cfg, const char *
 
 	/* start the sco listener for this adapter */
 	if (ast_pthread_create_background(&adapter->sco_listener_thread, NULL, do_sco_listen, adapter)) {
-		ast_log(LOG_ERROR, "Skipping adapter %s. Error creating audio connection listerner thread.\n", adapter->id);
+		ast_log(LOG_ERROR, "Skipping adapter %s. Error creating audio connection listener thread.\n", adapter->id);
 		goto e_remove_sco;
 	}
 
@@ -4499,7 +4499,7 @@ static struct mbl_pvt *mbl_load_device(struct ast_config *cfg, const char *cat)
 	}
 	AST_RWLIST_UNLOCK(&adapters);
 	if (!adapter) {
-		ast_log(LOG_ERROR, "Skiping device %s. Unknown adapter '%s' specified.\n", cat, adapter_str);
+		ast_log(LOG_ERROR, "Skipping device %s. Unknown adapter '%s' specified.\n", cat, adapter_str);
 		goto e_return;
 	}
 
diff --git a/addons/chan_ooh323.c b/addons/chan_ooh323.c
index c878041129..814022c260 100644
--- a/addons/chan_ooh323.c
+++ b/addons/chan_ooh323.c
@@ -2055,7 +2055,7 @@ int onOutgoingCall(ooCallData *call)
 			}
 			ooCallAddAliasDialedDigits(call, p->caller_dialedDigits);
 		} else if (!ast_strlen_zero(p->callerid_num)) {
-			if (ooIsDailedDigit(p->callerid_num)) {
+			if (ooIsDialedDigit(p->callerid_num)) {
 				if (gH323Debug) {
 					ast_verb(0, "setting callid number %s\n", p->callerid_num);
 				}
@@ -2136,7 +2136,7 @@ int onNewCallCreated(ooCallData *call)
 			}
 			ooCallAddAliasDialedDigits(call, p->caller_dialedDigits);
 		} else if (!ast_strlen_zero(p->callerid_num)) {
-			if (ooIsDailedDigit(p->callerid_num)) {
+			if (ooIsDialedDigit(p->callerid_num)) {
 				if (gH323Debug) {
 					ast_verb(0, "setting callid number %s\n", p->callerid_num);
 				}
@@ -2148,7 +2148,7 @@ int onNewCallCreated(ooCallData *call)
 
 
 		if (!ast_strlen_zero(p->exten))  {
-			if (ooIsDailedDigit(p->exten)) {
+			if (ooIsDialedDigit(p->exten)) {
 				ooCallSetCalledPartyNumber(call, p->exten);
 				ooCallAddRemoteAliasDialedDigits(call, p->exten);
 			} else {
diff --git a/addons/ooh323c/README b/addons/ooh323c/README
index 3231747098..a4a0036af5 100644
--- a/addons/ooh323c/README
+++ b/addons/ooh323c/README
@@ -75,7 +75,7 @@ To run the stack test application chansetup
 3. For running calling instance
 
         ./h323peer [--use-ip ip] -n <number of calls> -duration <call duration>
-                   -interval <inetrval between successive calls> destination
+                   -interval <interval between successive calls> destination
 
    where all times are in seconds. Interval of 0 means next call will be placed
    after current call finishes. "destination" is the dotted ip address of the
diff --git a/addons/ooh323c/src/decode.c b/addons/ooh323c/src/decode.c
index d0579c69b5..c260d8c0ad 100644
--- a/addons/ooh323c/src/decode.c
+++ b/addons/ooh323c/src/decode.c
@@ -417,7 +417,7 @@ int decodeDynBitString (OOCTXT* pctxt, ASN1DynBitStr* pBitStr)
    ASN1OCTET* ptmp;
    int nbits, stat = ASN_OK;
 
-   /* If "fast copy" option is not set (ASN1FATSCOPY) or if constructed,
+   /* If "fast copy" option is not set (ASN1FASTCOPY) or if constructed,
     * copy the bit string value into a dynamic memory buffer;
     * otherwise, store the pointer to the value in the decode
     * buffer in the data pointer argument. */
diff --git a/addons/ooh323c/src/encode.c b/addons/ooh323c/src/encode.c
index b48733be84..4d12912982 100644
--- a/addons/ooh323c/src/encode.c
+++ b/addons/ooh323c/src/encode.c
@@ -1007,7 +1007,7 @@ int encode2sCompBinInt (OOCTXT* pctxt, ASN1INT value)
 {
    /* 10.4.6  A minimum octet 2's-complement-binary-integer encoding    */
    /* of the whole number has a field width that is a multiple of 8     */
-   /* bits and also satisifies the condition that the leading 9 bits    */
+   /* bits and also satisfies the condition that the leading 9 bits     */
    /* field shall not be all zeros and shall not be all ones.           */
 
    /* first encode integer value into a local buffer */
@@ -1048,7 +1048,7 @@ static int encodeNonNegBinInt (OOCTXT* pctxt, ASN1UINT value)
    /* 10.3.6  A minimum octet non-negative binary integer encoding of   */
    /* the whole number (which does not predetermine the number of       */
    /* octets to be used for the encoding) has a field which is a        */
-   /* multiple of 8 bits and also satisifies the condition that the     */
+   /* multiple of 8 bits and also satisfies the condition that the      */
    /* leading eight bits of the field shall not be zero unless the      */
    /* field is precisely 8 bits long.                                   */
 
diff --git a/addons/ooh323c/src/eventHandler.h b/addons/ooh323c/src/eventHandler.h
index 32719c58a8..0f98f333d0 100644
--- a/addons/ooh323c/src/eventHandler.h
+++ b/addons/ooh323c/src/eventHandler.h
@@ -49,7 +49,7 @@ extern "C" {
  * SEQUENCE OF, SET OF, or CHOICE construct is parsed.
  *
  * @param name         For SEQUENCE, SET, or CHOICE, this is the name of the
- *                       element as defined in the ASN.1 defination. For
+ *                       element as defined in the ASN.1 definition. For
  *                       SEQUENCE OF or SET OF, this is set to the name
  *                       "element".
  * @param index        For SEQUENCE, SET, or CHOICE, this is not used and is
@@ -68,7 +68,7 @@ typedef void (*StartElement) (const char* name, int index) ;
  * SEQUENCE, SET, SEQUENCE OF, SET OF, or CHOICE construct.
  *
  * @param name         For SEQUENCE, SET, or CHOICE, this is the name of the
- *                       element as defined in the ASN.1 defination. For
+ *                       element as defined in the ASN.1 definition. For
  *                       SEQUENCE OF or SET OF, this is set to the name
  *                       "element".
  * @param index        For SEQUENCE, SET, or CHOICE, this is not used and is
@@ -194,7 +194,7 @@ typedef void (*EnumValue) (ASN1UINT value) ;
  * within a decode function when an ASN.1 open type is parsed.
  *
  * @param numocts      Number of octets in the parsed value.
- * @param data         Pointer to byet array contain in tencoded ASN.1
+ * @param data         Pointer to byte array contain in tencoded ASN.1
  *                       value.
  * @return             - none
  */
diff --git a/addons/ooh323c/src/h323/H323-MESSAGES.h b/addons/ooh323c/src/h323/H323-MESSAGES.h
index eb32ad9c9d..0ae8d5d75d 100644
--- a/addons/ooh323c/src/h323/H323-MESSAGES.h
+++ b/addons/ooh323c/src/h323/H323-MESSAGES.h
@@ -1926,7 +1926,7 @@ typedef struct EXTERN H225SecurityCapabilities {
    } m;
    H225NonStandardParameter nonStandard;
    H225SecurityServiceMode encryption;
-   H225SecurityServiceMode authenticaton;
+   H225SecurityServiceMode authentication;
    H225SecurityServiceMode integrity;
 } H225SecurityCapabilities;
 
diff --git a/addons/ooh323c/src/h323/H323-MESSAGESDec.c b/addons/ooh323c/src/h323/H323-MESSAGESDec.c
index 4a641e43b8..7fcb747686 100644
--- a/addons/ooh323c/src/h323/H323-MESSAGESDec.c
+++ b/addons/ooh323c/src/h323/H323-MESSAGESDec.c
@@ -6357,14 +6357,14 @@ EXTERN int asn1PD_H225SecurityCapabilities (OOCTXT* pctxt, H225SecurityCapabilit
 
    invokeEndElement (pctxt, "encryption", -1);
 
-   /* decode authenticaton */
+   /* decode authentication */
 
-   invokeStartElement (pctxt, "authenticaton", -1);
+   invokeStartElement (pctxt, "authentication", -1);
 
-   stat = asn1PD_H225SecurityServiceMode (pctxt, &pvalue->authenticaton);
+   stat = asn1PD_H225SecurityServiceMode (pctxt, &pvalue->authentication);
    if (stat != ASN_OK) return stat;
 
-   invokeEndElement (pctxt, "authenticaton", -1);
+   invokeEndElement (pctxt, "authentication", -1);
 
    /* decode integrity */
 
diff --git a/addons/ooh323c/src/h323/H323-MESSAGESEnc.c b/addons/ooh323c/src/h323/H323-MESSAGESEnc.c
index 20159008ac..1c3948fc80 100644
--- a/addons/ooh323c/src/h323/H323-MESSAGESEnc.c
+++ b/addons/ooh323c/src/h323/H323-MESSAGESEnc.c
@@ -4408,9 +4408,9 @@ EXTERN int asn1PE_H225SecurityCapabilities (OOCTXT* pctxt, H225SecurityCapabilit
    stat = asn1PE_H225SecurityServiceMode (pctxt, &pvalue->encryption);
    if (stat != ASN_OK) return stat;
 
-   /* encode authenticaton */
+   /* encode authentication */
 
-   stat = asn1PE_H225SecurityServiceMode (pctxt, &pvalue->authenticaton);
+   stat = asn1PE_H225SecurityServiceMode (pctxt, &pvalue->authentication);
    if (stat != ASN_OK) return stat;
 
    /* encode integrity */
diff --git a/addons/ooh323c/src/memheap.c b/addons/ooh323c/src/memheap.c
index 33be66765e..5446522ceb 100644
--- a/addons/ooh323c/src/memheap.c
+++ b/addons/ooh323c/src/memheap.c
@@ -265,7 +265,7 @@ void* memHeapAlloc (void** ppvMemHeap, int nbytes)
                   if (nunits <= (ASN1UINT)pElem_nunits (pElem)) {
                      RTMEMDIAG3
                         ("memHeapAlloc: "
-                         "found an exisiting free element 0x%x, size %d\n",
+                         "found an existing free element 0x%x, size %d\n",
                         pElem, (pElem_nunits (pElem) * 8u));
 
                      if (pMemBlk->freeElemOff ==
@@ -1214,7 +1214,7 @@ static OSMemLink* memHeapAddBlock (OSMemLink** ppMemLink,
 
    /* if pMemBlk has RTMEMLINK flags it means that it is allocated
     * cooperatively with OSMemLink, and we don't need to do additional
-    * allocations for it. Just use pointer's arithemtic. */
+    * allocations for it. Just use pointer's arithmetic. */
 
    if (blockType & RTMEMLINK)
       pMemLink = (OSMemLink*) (((ASN1OCTET*)pMemBlk) - sizeof (OSMemLink));
diff --git a/addons/ooh323c/src/ooCalls.c b/addons/ooh323c/src/ooCalls.c
index 15ab3258f4..ee4fc895b4 100644
--- a/addons/ooh323c/src/ooCalls.c
+++ b/addons/ooh323c/src/ooCalls.c
@@ -783,7 +783,7 @@ OOH323CallData* ooFindCallByToken(const char *callToken)
 
 
 
-/* Checks whether session with suplied ID and direction is already active*/
+/* Checks whether session with supplied ID and direction is already active*/
 ASN1BOOL ooIsSessionEstablished(OOH323CallData *call, int sessionID, char* dir)
 {
    OOLogicalChannel * temp = NULL;
diff --git a/addons/ooh323c/src/ooCapability.h b/addons/ooh323c/src/ooCapability.h
index ce9cc392f4..36bb1a5b5a 100644
--- a/addons/ooh323c/src/ooCapability.h
+++ b/addons/ooh323c/src/ooCapability.h
@@ -294,7 +294,7 @@ EXTERN int ooCapabilityDisableDTMFQ931Keypad(struct OOH323CallData *call);
  * and txframes parameters to the endpoint or call.(ex. G711, G728, G723.1,
  * G729)
  * @param call                 Handle to a call. If this is not Null, then
- *                             capability is added to call's remote enpoint
+ *                             capability is added to call's remote endpoint
  *                             capability list, else it is added to local H323
  *                             endpoint list.
  * @param cap                  Type of G711 capability to be added.
@@ -326,7 +326,7 @@ EXTERN int ooCapabilityAddSimpleCapability
  * to local endpoints capability list or to remote endpoints capability list or
  * to a call's capability list.
  * @param call                 Handle to a call. If this is not Null, then
- *                             capability is added to call's remote enpoint
+ *                             capability is added to call's remote endpoint
  *                             capability list, else it is added to local H323
  *                             endpoint list.
  * @param cap                  Type of GSM capability to be added.
@@ -357,7 +357,7 @@ int ooCapabilityAddGSMCapability(struct OOH323CallData *call, int cap,
  * capability list or to remote endpoints capability list or to a call's
  * capability list.
  * @param call                 Handle to a call. If this is not Null, then
- *                             capability is added to call's remote enpoint
+ *                             capability is added to call's remote endpoint
  *                             capability list, else it is added to local H323
  *                             endpoint list.
  * @param sqcifMPI             Minimum picture interval for encoding/decoding
@@ -396,7 +396,7 @@ EXTERN int ooCapabilityAddH263VideoCapability(struct OOH323CallData *call,
 /**
  * This function is an helper function to ooCapabilityAddH263VideoCapability.
  * @param call                 Handle to a call. If this is not Null, then
- *                             capability is added to call's remote enpoint
+ *                             capability is added to call's remote endpoint
  *                             capability list, else it is added to local H323
  *                             endpoint list.
  * @param sqcifMPI             Minimum picture interval for encoding/decoding
@@ -717,11 +717,11 @@ EXTERN int ooAppendCapToCapPrefs(struct OOH323CallData *call, int cap);
 EXTERN int ooChangeCapPrefOrder(struct OOH323CallData *call, int cap, int pos);
 
 /**
- * This function is used to preppend a particular capability to preference
+ * This function is used to prepend a particular capability to preference
  * list.
  * @param call     Handle to call, if call's preference list has to be modified
  *                 else NULL, to modify endpoint's preference list.
- * @param cap      Capability to be preppended.
+ * @param cap      Capability to be prepended.
  *
  * @return         OO_OK, on success. OO_FAILED, otherwise.
  */
diff --git a/addons/ooh323c/src/ooCmdChannel.c b/addons/ooh323c/src/ooCmdChannel.c
index 0cdb9dddfe..ec38c4afcb 100644
--- a/addons/ooh323c/src/ooCmdChannel.c
+++ b/addons/ooh323c/src/ooCmdChannel.c
@@ -186,7 +186,7 @@ int ooReadAndProcessStackCommand()
                 if(!pCall) {
                    OOTRACEINFO2("Call \"%s\" does not exist\n",
                                 (char*)cmd.param1);
-                   OOTRACEINFO1("Call migth be cleared/closed\n");
+                   OOTRACEINFO1("Call might be cleared/closed\n");
                 }
                 else {
                      ooSendProgress(ooFindCallByToken((char*)cmd.param1));
@@ -200,7 +200,7 @@ int ooReadAndProcessStackCommand()
                   if(!pCall) {
                      OOTRACEINFO2("Call \"%s\" does not exist\n",
                                   (char*)cmd.param1);
-                     OOTRACEINFO1("Call migth be cleared/closed\n");
+                     OOTRACEINFO1("Call might be cleared/closed\n");
                   }
                   else {
                      ooSendAlerting(ooFindCallByToken((char*)cmd.param1));
diff --git a/addons/ooh323c/src/ooGkClient.c b/addons/ooh323c/src/ooGkClient.c
index 5ec33eef93..174baab125 100644
--- a/addons/ooh323c/src/ooGkClient.c
+++ b/addons/ooh323c/src/ooGkClient.c
@@ -1231,7 +1231,7 @@ int ooGkClientHandleRegistrationConfirm
                                 (&pGkClient->ctxt, sizeof(ooGkClientTimerCb));
       if(!cbData)
       {
-         OOTRACEERR1("Error:Failed to allocate memory for Regisration timer."
+         OOTRACEERR1("Error:Failed to allocate memory for Registration timer."
                      "\n");
          pGkClient->state = GkClientFailed;
          return OO_FAILED;
@@ -1927,7 +1927,7 @@ int ooGkClientSendAdmissionRequest
                                (&pGkClient->ctxt, sizeof(ooGkClientTimerCb));
    if(!cbData)
    {
-      OOTRACEERR1("Error:Failed to allocate memory for Regisration timer."
+      OOTRACEERR1("Error:Failed to allocate memory for Registration timer."
                   "\n");
       pGkClient->state = GkClientFailed;
       ast_mutex_unlock(&pGkClient->Lock);
diff --git a/addons/ooh323c/src/ooGkClient.h b/addons/ooh323c/src/ooGkClient.h
index e529b4a987..b7bde935aa 100644
--- a/addons/ooh323c/src/ooGkClient.h
+++ b/addons/ooh323c/src/ooGkClient.h
@@ -318,7 +318,7 @@ EXTERN int ooGkClientHandleRASMessage
 
 
 /**
- * This function is used to send a message on Gatekeeper clien't RAS channel.
+ * This function is used to send a message on Gatekeeper client RAS channel.
  * @param pGkClient   Handle to the gatekeeper client.
  * @param pRasMsg     Handle to Ras message to be sent.
  *
diff --git a/addons/ooh323c/src/ooLogChan.c b/addons/ooh323c/src/ooLogChan.c
index 05b152a86f..2b659b3f96 100644
--- a/addons/ooh323c/src/ooLogChan.c
+++ b/addons/ooh323c/src/ooLogChan.c
@@ -78,7 +78,7 @@ OOLogicalChannel* ooAddNewLogicalChannel(OOH323CallData *call, int channelNo,
       OOTRACEDBGC3("Using configured media info (%s, %s)\n", call->callType,
                    call->callToken);
       pNewChannel->localRtpPort = pMediaInfo->lMediaRedirPort ? pMediaInfo->lMediaRedirPort : pMediaInfo->lMediaPort;
-      /* check MediaRedirPort here because RedirCPort is ReditPort + 1 and can't be 0 ;) */
+      /* check MediaRedirPort here because RedirCPort is RedirPort + 1 and can't be 0 ;) */
       pNewChannel->localRtcpPort = pMediaInfo->lMediaRedirPort ? pMediaInfo->lMediaRedirCPort : pMediaInfo->lMediaCntrlPort;
       /* If user application has not specified a specific ip and is using
          multihomed mode, substitute appropriate ip.
diff --git a/addons/ooh323c/src/ooSocket.h b/addons/ooh323c/src/ooSocket.h
index b4cbf881b5..d22382fff3 100644
--- a/addons/ooh323c/src/ooSocket.h
+++ b/addons/ooh323c/src/ooSocket.h
@@ -318,7 +318,7 @@ EXTERN int ooSocketSendTo(OOSOCKET socket, const ASN1OCTET* pdata,
 
 /**
  * This function is used for synchronous monitoring of multiple sockets.
- * For more information refer to documnetation of "select" system call.
+ * For more information refer to documentation of "select" system call.
  *
  * @param nfds         The highest numbered descriptor to be monitored
  *                     plus one.
diff --git a/addons/ooh323c/src/ooUtils.c b/addons/ooh323c/src/ooUtils.c
index c71933cb73..fb60746f6a 100644
--- a/addons/ooh323c/src/ooUtils.c
+++ b/addons/ooh323c/src/ooUtils.c
@@ -30,7 +30,7 @@ OOBOOL ooUtilsIsStrEmpty (const char* str)
 }
 
 
-OOBOOL ooIsDailedDigit(const char* str)
+OOBOOL ooIsDialedDigit(const char* str)
 {
    if(str == NULL || *str =='\0') { return FALSE; }
    while(*str != '\0')
diff --git a/addons/ooh323c/src/ooUtils.h b/addons/ooh323c/src/ooUtils.h
index 78aee325c0..ff9b16d165 100644
--- a/addons/ooh323c/src/ooUtils.h
+++ b/addons/ooh323c/src/ooUtils.h
@@ -48,6 +48,6 @@ EXTERN OOBOOL ooUtilsIsStrEmpty (const char * str);
  * @param str    String to test
  * @return       TRUE if string contains all digits; FALSE otherwise
  */
-EXTERN OOBOOL ooIsDailedDigit(const char* str);
+EXTERN OOBOOL ooIsDialedDigit(const char* str);
 
 #endif
diff --git a/addons/ooh323c/src/ooasn1.h b/addons/ooh323c/src/ooasn1.h
index 4fee621160..9315150441 100644
--- a/addons/ooh323c/src/ooasn1.h
+++ b/addons/ooh323c/src/ooasn1.h
@@ -607,7 +607,7 @@ EXTERN int initContextBuffer
 /**
  * This function initializes a context block. It makes sure that if the block
  * was not previosly initialized, that all key working parameters are set to
- * thier correct initial state values (i.e. declared within a function as a
+ * their correct initial state values (i.e. declared within a function as a
  * normal working variable), it is required that they invoke this function
  * before using it.
  *
diff --git a/addons/ooh323c/src/oochannels.c b/addons/ooh323c/src/oochannels.c
index 3add1f30c6..8250c8b2f9 100644
--- a/addons/ooh323c/src/oochannels.c
+++ b/addons/ooh323c/src/oochannels.c
@@ -297,7 +297,7 @@ int ooCreateH225Connection(OOH323CallData *call)
       {
          call->pH225Channel->sock = channelSocket;
 
-         OOTRACEINFO3("H2250 transmiter channel creation - successful "
+         OOTRACEINFO3("H2250 transmitter channel creation - successful "
                       "(%s, %s)\n", call->callType, call->callToken);
 
          /* If multihomed, get ip from socket */
diff --git a/addons/ooh323c/src/ooh245.c b/addons/ooh323c/src/ooh245.c
index fe8ff28e08..014e49d570 100644
--- a/addons/ooh323c/src/ooh245.c
+++ b/addons/ooh323c/src/ooh245.c
@@ -2559,7 +2559,7 @@ int ooOnReceivedRequestChannelClose(OOH323CallData *call,
    if (lChannel->state == OO_LOGICALCHAN_ESTABLISHED) {
      ret = ooSendCloseLogicalChannel(call, lChannel);
      if (ret != OO_OK) {
-      OOTRACEERR3("ERROR:Failed to build CloseLgicalChannel message(%s, %s)\n",
+      OOTRACEERR3("ERROR:Failed to build CloseLogicalChannel message(%s, %s)\n",
                    call->callType, call->callToken);
       return OO_FAILED;
      }
diff --git a/addons/ooh323c/src/ooh245.h b/addons/ooh323c/src/ooh245.h
index 9635a4e10c..362ed7ddae 100644
--- a/addons/ooh323c/src/ooh245.h
+++ b/addons/ooh323c/src/ooh245.h
@@ -174,7 +174,7 @@ EXTERN int ooSendMasterSlaveDeterminationReject (struct OOH323CallData* call);
  * MasterSlaveDetermination procedure.
  * @param call        Handle to the call for which MasterSlaveReject is
  *                    received.
- * @param reject      Poinetr to the received reject message.
+ * @param reject      Pointer to the received reject message.
  *
  * @return            OO_OK, on success. OO_FAILED, on failure.
  */
@@ -271,7 +271,7 @@ EXTERN int ooOnReceivedUserInputIndication
    (OOH323CallData *call, H245UserInputIndication *indication);
 
 /**
- * This function is called on receiving a TreminalCapabilitySetAck message.
+ * This function is called on receiving a TerminalCapabilitySetAck message.
  * If the MasterSlaveDetermination process is also over, this function
  * initiates the process of opening logical channels.
  * @param call          Pointer to call for which TCSAck is received.
diff --git a/addons/ooh323c/src/ooh323.c b/addons/ooh323c/src/ooh323.c
index ebdf75a342..93e90454c2 100644
--- a/addons/ooh323c/src/ooh323.c
+++ b/addons/ooh323c/src/ooh323.c
@@ -616,7 +616,7 @@ int ooOnReceivedSetup(OOH323CallData *call, Q931Message *q931Msg)
               removeEventHandler(call->pctxt);
               return OO_FAILED;
          }
-         /* For now, just add decoded fast start elemts to list. This list
+         /* For now, just add decoded fast start elements to list. This list
             will be processed at the time of sending CONNECT message. */
          dListAppend(call->pctxt, &call->remoteFastStartOLCs, olc);
       }
diff --git a/addons/ooh323c/src/ooh323ep.c b/addons/ooh323c/src/ooh323ep.c
index be43896e18..5ae344432a 100644
--- a/addons/ooh323c/src/ooh323ep.c
+++ b/addons/ooh323c/src/ooh323ep.c
@@ -65,7 +65,7 @@ int ooH323EpInitialize
    }
 
    /* Initialize default port ranges that will be used by stack.
-      Apps can override these by explicitely setting port ranges
+      Apps can override these by explicitly setting port ranges
    */
 
    gH323ep.tcpPorts.start = TCPPORTSSTART;
diff --git a/addons/ooh323c/src/ooq931.c b/addons/ooh323c/src/ooq931.c
index fc18703921..fe8b06ebee 100644
--- a/addons/ooh323c/src/ooq931.c
+++ b/addons/ooh323c/src/ooq931.c
@@ -1210,7 +1210,7 @@ int ooSetFastStartResponse(OOH323CallData *pCall, Q931Message *pQ931msg,
          pChannel = ooFindLogicalChannelByLogicalChannelNo
                       (pCall, olc->forwardLogicalChannelNumber);
 
-         /* start receive and tramsmit channel listening */
+         /* start receive and transmit channel listening */
          if(dir & OORX)
          {
             strcpy(pChannel->remoteIP, remoteMediaControlIP);
@@ -2025,7 +2025,7 @@ int ooSendStatusInquiry(OOH323CallData *call)
    /* OOCTXT *pctxt = &gH323ep.msgctxt; */
    OOCTXT *pctxt = call->msgctxt;
 
-   OOTRACEDBGC3("Building StatusInquryMsg (%s, %s)\n", call->callType,
+   OOTRACEDBGC3("Building StatusInquiryMsg (%s, %s)\n", call->callType,
                  call->callToken);
    ret = ooCreateQ931Message(pctxt, &q931msg, Q931StatusEnquiryMsg);
    if(ret != OO_OK)
@@ -2987,7 +2987,7 @@ int ooH323MakeCall_helper(OOH323CallData *call)
          }
          if(!epCap)
          {
-            OOTRACEWARN4("Warn:Preferred capability %s is abscent in "
+            OOTRACEWARN4("Warn:Preferred capability %s is absent in "
                          "capability list. (%s, %s)\n",
                          ooGetCapTypeText(call->capPrefs.order[k]),
                          call->callType, call->callToken);
diff --git a/addons/ooh323c/src/ooq931.h b/addons/ooh323c/src/ooq931.h
index 31e53e9295..03b257c668 100644
--- a/addons/ooh323c/src/ooq931.h
+++ b/addons/ooh323c/src/ooq931.h
@@ -582,7 +582,7 @@ EXTERN int ooH323MakeCall_helper(struct OOH323CallData *call);
  * @param dest      Destination string to be parsed.
  * @param parsedIP  Pointer to buffer in which parsed ip:port will be returned.
  * @param len       Length of the buffer passed.
- * @param aliasList Aliase List in which new aliases will be added.
+ * @param aliasList Aliases List in which new aliases will be added.
  *
  * @return          OO_OK, on success. OO_FAILED, on failure.
  */